Kitt and Crowe also fashion several effective numbers sung by William's no-nonsense but supportive mother Elaine (Anika Larsen), a schoolteacher who frets from home. Here, she's given variations of the film's great monologues: One is a lecture to her class in which she memorably declares, 'Rock stars have kidnapped my son,' and in another, she gives Russell a dose of parental terror over the phone. Larsen lands both moments beautifully, with just the right comic gravitas and heart. But these skillful original songs only tell half the story. We never hear expressed - in a way that only musical theater can do - what this music means to these characters. Instead, at key dramatic moments we get renditions of the hits of the era, notably Elton John's 'Tiny Dancer' as a kind of carpool karaoke, Joni Mitchell's 'River' and Yusef Islam's (aka Cat Stevens) 'The Wind.' But even in minor moments the musical forgoes original songs and turns to tunes from Nancy Wilson, Ron Davies, Stevie Wonder, Greg Allman, Jimmy Page and Robert Point, among others.