'Downton Abbey' star Joanne Froggatt has been letting her hair down in Ibiza.

The 34-year-old actress - who stars as Anna Bates in the ITV period drama - proved she's nothing like her character by partying to The Kooks at the Ibiza Rocks hotel on the Spanish island recently.

Joanne was joined at the gig by 'Game of Thrones' actress Natalie Dormer, her director husband Ian Byrne and TV presenter Laura Whitmore.

Not wanting to bring her night to an end after the show, she continued to celebrate the end of the summer season with her fellow stars, the band and even Blue singer Lee Ryan by heading to the Ibiza Rocks House at Pikes Hotel for more drinks and dancing.

Despite being more than happy to hit the Spanish party capital, where outfits often consist of little more than a bikini and a pair of hot pants, Joanne has previously revealed she feels slightly uncomfortable around naked people.

Speaking about an awkward encounter she once had, she said: "I had a very enthusiastic fan when I was in the gym changing room.

"She had her leg up on the table, and I was trying to look away when she said, 'Are you in Downton?'

"She was having a very confident conversation with me while drying herself ... everywhere. That was a little awkward. But all power to her for being so confident in herself."