Hollywood acting legend William Shatner and 'Celebrity Big Brother' star LaToya Jackson will be appearing on 'Tubridy Tonight' this week.

Shatner will be chatting to presenter Ryan Tubridy about his years on 'Star Trek' and his recent role in 'Boston Legal', while Jackson will be discussing her spell in the 'Big Brother' house.

Also due to appear on the show this Saturday night is novelist Cathy Kelly.

Musical entertainment will be provided by Lady GaGa, who will be performing her single 'Just Dance'.

Speaking about Saturday's line-up, host Tubridy said: "I’m delighted William Shatner will be joining me on the show this Saturday night."

"He’s one of the most interesting characters in Hollywood and I’m a huge fan of his work, especially his most recent series 'Boston Legal'."

"There is so much to talk to him about from his years on 'Star Trek' to his quirky musical career."

For more on 'Tubridy Tonight' click here.