It was mentioned in a comment from Michael P. that there was another track that I could have included here, which was the extended single version of 'Sometimes A Fantasy' from 1980, which not only included a 'Helter Skelter' reference for those in the know, but also has different panning on the guitars, so I've decided to update the post.
For a man who has only released twelve studio albums spanning 1971-1993, Billy Joel has a large number of rare and alternate tracks out there, from edited promo singles to extended 12"s, duets to rare cover versions. This set gathers together fourteen of the best of them, starting with the edited promo 7" of his 'Piano Man' single from 1973, which might sound odd to fans of the longer version, but the label obviously didn't feel that radio stations wouldn't play a four and a half minute song back then. We then jump forward to 1982 for a rare non-album b-side, followed by extended versions of a couple of his singles, and an alternate take of a collaboration with Steve Winwood. 1993 sees another rare b-side and the original extended version of the title track from his 'River Of Dreams' album, and from the mid 2000's he was duetting with a number of other artists, such as Tony Bennett, Barbara Streisand, Jimmy Webb, Rosie O'Donnell, and Johnny Mathis. In 2007 he released the 'All My Life' single only in Australia, and we end with a couple of covers of Paul McCartney songs, recorded for the 'Art Of McCartney' tribute album in 2014. Hopefully even the most ardent Joel fan should find something of interest here that they might not have heard before.
01 Piano Man (edited promo single 1973)
02 Sometimes A Fantasy (single edit 1980)
03 Elvis Presley Blvd. (b-side of 'Allentown' 1982)
04 Tell Her About It (extended version 1983)
05 Keeping The Faith (special extended mix 1983)
06 Getting Closer (alternate version with Steve Winwood 1986)
07 You Picked A Real Bad Time (b-side of 'All About Soul' 1993)
08 The River Of Dreams (original extended version 1993)
09 The Good Life (duet with Tony Bennett 2006)
10 All My Life (single 2007)
11 Wichita Lineman (duet with Jimmy Webb 2010)
12 New York State Of Mind (duet with Barbara Streisand 2014)
13 Maybe I'm Amazed (from 'The Art Of McCartney' tribute album 2014)
14 Live And Let Die (from 'The Art Of McCartney' tribute album 2014)
03 Elvis Presley Blvd. (b-side of 'Allentown' 1982)
04 Tell Her About It (extended version 1983)
05 Keeping The Faith (special extended mix 1983)
06 Getting Closer (alternate version with Steve Winwood 1986)
07 You Picked A Real Bad Time (b-side of 'All About Soul' 1993)
08 The River Of Dreams (original extended version 1993)
09 The Good Life (duet with Tony Bennett 2006)
10 All My Life (single 2007)
11 Wichita Lineman (duet with Jimmy Webb 2010)
12 New York State Of Mind (duet with Barbara Streisand 2014)
13 Maybe I'm Amazed (from 'The Art Of McCartney' tribute album 2014)
14 Live And Let Die (from 'The Art Of McCartney' tribute album 2014)