The trio had clearly had a fun night and were in high spirits as they exited the star-studded bash in Notting Hill, London, on Wednesday (17 July), with Ant & Dec taking turns to guide Holly past the photographers to her car.
Holly had arrived earlier in the evening looking pretty in her floor-length pink gown and with her blonde hair flowing. During the night she tied her hair back (we don't blame her – it was a sticky, hot night in the capital!) and appeared to find a flower to match her dress.
Not only that, but she apparently found two more for Ant & Dec, who wore them with pride as they walked down the street.
Holly and Ant & Dec joined other stars including the TOWIE cast, Jeremy Kyle, Emma Bunton, Myleene Klass, Laura Whitmore and Zoe Hardman for the annual summer party.
Holly, meanwhile, recently spoke out about Jessie J's departure from The Voice UK, the BBC singing competition that Holly hosts.
Jessie announced earlier this month she would be leaving The Voice UK to focus on her music, and that announcement was followed by The Script's Danny O'Donoghue confirming he too would not be returning for a third season.
That leaves will.i.am and Sir Tom Jones as the two remaining judges, provided neither of them decides to leave too.
Holly told The Daily Telegraph she'd miss Jessie on set, saying: " I'm really going to miss Jessie. We were lucky to have her as long as we did. Whoever replaces her is going to have big shoes to fill."
Lucy Mecklenburgh, Myleene Klass, Caroline Flack & more at ITV party - pictures:
Copyright: Rex Features Rotello