T. Rex

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0:13 Piper walks in on her boyfriend, Frank, having sex with another girl.
Bang a Gong (Get It On)
0:06 First song as Barney reads the book and remembers back to meeting Boogie in Italy.
20th Century Boy
1:30 Song during the surfing competition.
0:54 Rayon is playing this song at their new office. Some new customers arrive. Again end credits.
Ballrooms of Mars