Becks is off to Peckham to catch up with Rodders and Del Boy in a one-off special Only Fools And Horses sketch. Amazing!
Also tonight we can expect lots of competitive spirit as two teams go head to head in a series of sporting challenges. Captained by John Bishop and Seb Coe, and with team members such as Olly Murs, Nick Grimshaw, Freddie Flintoff, Sally Phillips, Greg James and Nicola Adams.
Cheryl Cole will be introducing a video on malaria, while there's a Strictly Come Dancing special with four fantastic Paralympians donning the sequins to sparkle on the dance floor, and lots, lots more fun and action on the night.
Sport Relief's Big Night Of TV, BBC1 & BBC2, 7pm