Sophie Turner Jams to Taylor Swift's '22' on Her Birthday -- Even Though the Singer Is Fiance Joe Jonas' Ex!

The 'Game of Thrones' star explains why Jonas is the one, but jokes that she and Williams are like 'a married couple.'

Don't know about you, but Sophie Turner is feelin' 22!

The Game of Thrones star shared a few epic posts to her Instagram Story on Wednesday to celebrate her birthday, including one video rocking out hard while lip-syncing to Taylor Swift's Red single, "22."

And while Swift and Turner's fiance, singer Joe Jonas, have some history -- they dated back in 2008, though the relationship ended with the infamous 27-second phone call -- we're sure the "DNCE" singer doesn't mind. After all, the catchy pop tune is basically a required birthday anthem for 22-year-olds.

Check out the snaps from her amazing story below, which also included an adorable throwback photo, giant balloons and a dance-off to Jay Sean's "Down."