Willie Nelson paying tribute to Ray Charles? Makes sense: Both men are American icons whose songbooks are full of barroom country, blues and classic pop. But Here We Go Again — recorded live in New York in 2009 with Wynton Marsalis' band and guest Norah Jones — feels like a missed opportunity. Nelson's nylon-stabbing guitar is too scarce here, giving way to Marsalis' jazz band, a slick cast that rotates solos exhaustively. The best moments? Nelson and Jones' duets — they play the part of burned lovers beautifully on Buck Owens' heartbreak ballad "Cryin' Time.

Listen to Willie Nelson & Wynton Marsalis ft. Norah Jones' "Here We Go Again":

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“Helen Wheels”

A rollicking good-time hard rocker, "Helen Wheels" was not about a woman but about Paul McCartney's Land Rover, the anthemic chorus voicing the vehicle's reckless joy as "she" took to the road. The song was added to the U.S. version of Band on the Run but was issued only as a single in McCartney's native U.K. "I like that because it's a British road song and there's not many of those around," said McCartney. "It's always Route 66. But Carlisle? How many songs have got Carlisle in them?"