Ringo Starr is to feature in an exclusive episode of The Powerpuff Girls, it has been revealed.
The former Beatles drummer will voice the character Fibonacci Sequins in the cartoon's one-off 15th anniversary special next month.
Powerpuff trio Bubbles, Buttercup and Blossom will return to the Cartoon Network in the episode titled "Dance Pantsed".
According to Variety, Starr’s character will be "Townsville's most famous flamboyant mathematician," who is kidnapped by Mojo Jojo, the evil monkey archenemy of the Powerpuff Girls.
Mojo Jojo will also kidnap an opera singer and a badger as part of his efforts to steal Chemical X and take over Townsville before the feisty super-powered trio ruin his plans.
The music icon will also contribute an original song and music video, "I Wish I Was A Powerpuff Girl".
The special, featuring original voice cast Catherine Cavadini, Tara Strong, E.G. Daily, Roger L. Jackson, Tom Kane and Tom Kenny, will air on 20 January, 2014 at 7.30pm ET, preceded by a 10-episode marathon the day before.
Created by Craig McCracken, The Powerpuff Girls ran from 1998 to 2005, with a film version released in 2002.
Also in January, a new mobile game based on the animated series will be released. Players will take on the role of their favourite Powerpuff Girl before undertaking battles and adventures to reach a showdown with Mojo Jojo.