In Dublin, John and Edward Grimes, aka Jedward, attended the after-party of the Cheerios Childline Concert, Michael Bublé dined with his wife at Bang Restaurant and TOWIE star Chloe Sims was at the RTE Studios to film The Saturday Night Show. Juliette Binoche was also in the city attending a screening of Another Woman's Life as part of the French Film Festival.
In Manchester, Denise Welch and Tim Healy hosted their annual Charity Ball. Denise was dressed in a Moulin Rouge-esque costume, complete with extravagant headpiece. Guests included Kym Marsh, Chelsee Healey and Andrea McLean.
Elsewhere, Katherine Heigl was all smiles as she was out and about in Los Angeles, Britain's Got Talent double act Jonathan and Charlotte performed at Mr World 2012, and Outnumbered actor Tyger Drew-Honey attended the British Academy Children's Awards in London.
See these pictures in our gallery below: