Nicole Scherzinger & Simon Cowell Attend Sharon Osbourne's 64th Birthday Dinner

Nicole Scherzinger looks gorgeous in head-to-toe black as she steps out for dinner at The Arts Club in Mayfair on Sunday (October 9) in London, England.

The 38-year-old singer was joined by Simon Cowell and Louis Walsh to celebrate their fellow X Factor judge Sharon Osbourne‘s 64th birthday.

All of the party guests looked like they had a blast, and they reportedly didn’t leave until 2 a.m!

In case you missed it, Simon recently caused an Internet uproar when he appeared to suffer a hilarious wardrobe malfunction.

20+ pictures inside of Nicole Scherzinger and Simon Cowell at Sharon Osbourne‘s birthday…