Simon and Garfunkel are undoubtedly one of the most successful songwriting duos of the 60s, reaching a similar level of popularity to the Beatles during the latter part of the decade. This Definite Collection shows what a diverse duo they really were and how many memorable tunes they performed together. Though many were put off by the pair's more sterile folk-rock arrangements and clean choirboy harmonies, this collection shows that there was much more to their artistic palette. Songs such as "Homeward Bound", "I Am a Rock", "Cecilia" and "Mrs Robinson" all show that the duo could rock with the best of them and "The Sound of Silence" and "Bridge over Troubled Water" are just some of the beautifully timeless records the pair gave us. It may not be as definitive as it claims but this is a great collection featuring some of their best and most well known works.

A sudden switch in image accompanied Gilbert O'Sullivan's second album, 1972's Back to Front and its simultaneously released separate single "Alone Again (Naturally)." Gone was the mischievous little scamp sporting a jaunty cap and hand-me-down tweeds, in was a slick, hairy-chested lothario and along with this visual makeover came an aural overhaul, with O'Sullivan's sprightly show tune-inspired pop sounding slicker than before. And it's not just that Back to Front is given a gloss that would not have seemed out of place on a televised variety show from 1972, it's that O'Sullivan is taking great care to write sprightly theatrical tunes, songs that take great pride in their clever-clever twists, smiling, crowd-pleasing melodies, and the proudly cheeky sentimentality that drips off of “Clair,” to name the most obvious example here. In many ways, the unabashed showbiz cheer of Back to Front trumps the bedsit introspection of Himself: in his heart Gilbert O’Sullivan is a song-and-dance man possessing a way with a snappy hook or tearjerking melody, qualities that are amply – and charmingly – displayed here.

Since the bulk of Jim Croce's discography consists of compilations that shuffle "You Don't Mess Around with Jim," "Bad, Bad Leroy Brown," "Operator," "Time in a Bottle," and "I Got a Name" in a seemingly endless series of permutations, it's easy to be suspicious of another collection, particularly one bearing the nondescript title Classic Hits. But Classic Hits is from Rhino Records, not a budget label like Disky, and they have put together the first serious Croce hits compilation since 1992's double-disc The 50th Anniversary Collection. That collection, while comprehensive, had limited appeal since only hardcore fans need 49 Croce songs in one compilation, so this is the first noteworthy single-disc compilation since the first Croce hits album, the 1974 LP Photographs & Memories. Every one of the 14 songs on that album is here, but the "Classic Hits" billing doesn't mean all of his charting singles are here – posthumous minor hit "Chain Gang Medley" is absent.

One of the most enigmatic figures in rock history, Scott Walker was known as Scotty Engel when he cut obscure flop records in the late '50s and early '60s in the teen idol vein. He then hooked up with John Maus and Gary Leeds to form the Walker Brothers. They weren't named Walker, they weren't brothers, and they weren't English, but they nevertheless became a part of the British Invasion after moving to the U.K. in 1965. They enjoyed a couple of years of massive success there (and a couple of hits in the U.S.) in a Righteous Brothers vein. As their full-throated lead singer and principal songwriter, Walker was the dominant artistic force in the group, who split in 1967. While remaining virtually unknown in his homeland, Walker launched a hugely successful solo career in Britain with a unique blend of orchestrated, almost MOR arrangements with idiosyncratic and morose lyrics. At the height of psychedelia, Walker openly looked to crooners like Sinatra, Jack Jones, and Tony Bennett for inspiration, and to Jacques Brel for much of his material. None of those balladeers, however, would have sung about the oddball subjects – prostitutes, transvestites, suicidal brooders, plagues, and Joseph Stalin – that populated Walker's songs.

This Time Life Singers & Songwriters collection highlights several classic singles released between 1974 and 1975. Among the 24 tracks are the original versions of "Don't Let the Sun Go Down on Me" by Elton John, "Miracles" by Jefferson Starship, and "Sunshine on My Shoulders" by John Denver, in addition to strong tracks by Carly Simon, Harry Chapin, James Taylor, and Jim Croce. This enjoyable sampler will please any die-hard soft rock fan.

Adam Faith was a contemporary of early British rock & rollers like Cliff Richard and Billy Fury, but Faith's sound was less Elvis Presley-derived and more aligned with teen idol pop such as that of Bobby Vee (who covered Faith's number one U.K. hit "What Do You Want?"). John Barry had a hand in Faith's early efforts, and the instrumental arrangements are truly remarkable, from the surprising hoedown-style fiddling on "Don't That Beat All" to the musical saw on "What Now." In fact, it is the arrangements that elevate this music above standard teen idol fare. Faith rocked occasionally, as on "Made You," had moderate success adapting to the changes wrought by the Beatles, and later worked with folk-pop material. The Very Best of Adam Faith tracks his evolution by collecting 26 U.K. chart hits from 1959-1966, four of which were recorded with the Roulettes. Faith had two minor hits in the U.S. in 1965 that aren't included, but The Very Best of Adam Faith is otherwise an exemplary and essential anthology of an early British pop star.

This entry into the Japan-only Premium Best series highlights the recordings of composer/performer Laura Nyro. Unlike other single-CD North American compilations, this 16-track disc gives sufficient time to her tragically underappreciated post-Smile recordings. Several of these titles are not even available on CD in the States, which is perhaps correlated to the seeming lack of interest. There are actually numerous advantages to this collection – not the least of which is the artist-sensitive track list. Presumably the Premium Best series is aimed at the casual enthusiast, as the hardcore collector would either already own the contents or buy it anyway if they were a completist. By including seminal album sides such as the imperially haunting "New York Tendaberry" and "Upstairs by a Chinese Lamp," a more accurate overview of Nyro's career is presented here.

Coinciding with the 35th anniversary of Denver's first album release on RCA, this two-disc, 25-track overview of the country-pop singer's storied career is the most concise and nuanced yet. Digitally remastered from the original master tapes, road-trip classics like "Take Me Home, Country Roads," "Rocky Mountain High," and "Back Home Again" are as warm as the singer's lauded tenor. There are no gimmicky re-recorded cuts or disappointing live tracks – "Thank God I'm a Country Boy" spent its time on the charts in its live incarnation – and his spotty '80s material is only briefly covered ("Perhaps Love" and "Shanghai Breezes"). For those unwilling to sift through the exhaustive four-CD Country Roads Collection, Song's Best Friend: The Very Best of John Denver is a good buy and a rewarding visit with an old friend.

There may be too many Carpenters compilations on the market – there are certainly enough to confuse the average neophyte – but Love Songs is a welcome addition to the clutter, since it offers 20 of the duo's very best love songs, including "We've Only Just Begun" and "Top of the World." Anyone looking for a collection of the duo's romantic songs should definitely consider this fine collection, even it does leave off some of their poppier, rock-inflected material.