Which group had a hit single in the UK charts in 1967 with the song 'Pictures of Lily'?

'Pictures of Lily' is a single by the British rock band the Who, written by guitarist and primary songwriter Pete Townshend. The song was released in 1967 as a single, and made the top five in the UK, peaking at number four. Outside the UK, the song failed to break into the top 50 in the United States, peaking at number fifty-one.

In the beginning of the song, the singer laments his insomnia. When his father gives him the pictures of the song's eponymous 'Lily', he feels better, and is able to sleep. Soon, he feels desire for 'Lily' as a person instead of a photo, and asks his father for an introduction. His father informs him however that 'Lily' has, in fact, been dead since 1929. Initially, the singer laments, but before long turns back to his fantasy.

The Who are a British rock band formed in London in 1964. Their classic lineup consisted of lead singer Roger Daltrey (born 1 March 1944), guitarist and singer Pete Townshend (born 19 May 1945) , bass guitarist and singer John Entwistle (9 October 1944 – 27 June 2002), and drummer Keith Moon (23 August 1946 – 7 September 1978). They are considered one of the most influential rock bands of the 20th century, and have sold over 100 million records worldwide.