Bob and Alf Pearson were an English musical variety act, composed of brothers Robert Alexander 'Bob' Pearson (15 August 1907 – 30 December 1985) and Alfred Vernon 'Alf' Pearson (15 June 1910 – 7 July 2012), who were mainly known for singing songs in close-harmony as a duo. Their career lasted over 50 years, spanning stage, radio, television and gramophone records.
During the 1930s and 40s, they became one of the most popular acts in Britain, and their fame continued into the post-war period when they regularly appeared on the BBC Radio show Ray's a Laugh with comedian Ted Ray. Introducing themselves with their signature tune, "My Brother and I", audiences heard the brothers performing well-known songs, with Bob accompanying on piano. Ray would ask, "Why, it's a little girl, what's your name?" with Bob replying, "Jennifer", followed by a comedy routine. Bob's turn as 'Jennifer' became closely associated with their act.