What was the British glam rock band Sweet's biggest hit in the US?

"Little Willy" is a song written by songwriters Nicky Chinn and Mike Chapman and performed by the British glam rock band. The Sweet, released in 1972 as a non-album single in the UK, peaking at #4 in the best seller charts. It was released in the US in September 1972 and also appeared on their US debut album The Sweet and became their biggest hit in the US, reaching No. 3 on the 'Billboard Hot 100. 'Billboard' ranked it as the No. 18 song for 1973.

The Sweet, sometimes also shortened to just Sweet, are a British glam rock band that rose to worldwide fame in the 1970s. Their best known line-up consisted of lead vocalist Brian Connolly, bass player Steve Priest, guitarist Andy Scott, and drummer Mick Tucker. The group was originally called The Sweetshop.

The band was formed in London in 1968 and achieved their first hit, "Funny Funny", in 1971 after teaming up with songwriters Nicky Chinn and Mike Chapman and record producer Phil Wainman. During 1971 and 1972, their musical style followed a marked progression from the Archies-like bubblegum style of "Funny Funny" to a Who-influenced hard rock style supplemented by a striking use of high-pitched backing vocals.