Britney Spears

Britney Spears was a 21st century human singer. Her song "Toxic", a "traditional ballad," was played on Lady Cassandra's "iPod". (TV: The End of the World)

Irving Braxiatel once asked Jason Kane to buy him some Britney Spears CDs while on a trip to Earth in the 21st century. (PROSE: A Mutual Friend)

Behind the scenes

She appeared as herself in the Children in Need special Looking for Pudsey.