Rihanna

The campest chat-show host in town has pulled out all the stops to celebrate the 100th edition of his show. Top of the bill is movie and music superstar Justin Timberlake, who'll be talking up new film Runner Runner and singing a song from chart-topping album 20/20, in between charming the pants off our happy host. Not only that but Rihanna is in the house too, while on hand to ramp up the butch quota is heavyweight boxer David Haye, currently hitting the comeback trail.

After her scene-stealing performance in The Devil Wears Prada, British actress Emily Blunt was tipped for stardom. Now she's making good on her early promise, joining bawdy chat show king Graham Norton to talk about her latest spate of big-budget movies. Sassy starlet Rihanna also drops by for a chat and performs her latest Calvin Harris-helmed hit Where Have You Been.

Rihanna gets raunchy with Jonathan Ross

Jonathan Ross was left looking rather sheepish by a "waunchy" performance by "Wihanna" on his Friday night ITV show...

The last time R&B superstar Rihanna was on a Jonathan Ross chat show, back in December 2009, the host compared her low-cut dress to a curtain. Hopefully Ross will behave a little more suavely tonight as he talks to the Barbadian about her current musical projects and her appearance alongside Liam Neeson in a soon-to-be-released Hollywood blockbuster called Battleship. Further down the bill, there's an interview with Lionel Richie, while Imelda Staunton and Michael Ball will discuss their popular revival of Stephen Sondheim's Sweeny Todd, currently showing in the West End.