Beatles' Paul McCartney performs on last episode of Colbert's show

The Beatles singer Paul McCartney performed 'Hello, Goodbye' on the final episode of 'The Late Show with Stephen Colbert' on CBS. The episode included cameos from actors Paul Rudd, Ryan Reynolds and Bryan Cranston. US Senator Elizabeth Warren earlier alleged the show was cancelled as Colbert called a deal between CBS-parent Paramount and US President Trump a "fat bribe".