See Britney Spears & Iggy Azalea Cuddle Up on Video Set

UPDATE: Photos surfaced later Thursday of Britney Spears and Iggy Azalea shooting a video for their collaboration -- including the one above.

Britney Spears, Noted Goofball, is many fans' favorite version of the singer.

So it was a delightful surprise when Spears tweeted the below grinning picture Thursday afternoon (April 9). Not only is Spears looking great and happy, but it's possible the emoji-filled message accompanying the photo may be lyrics to her upcoming collaboration with Iggy Azalea. "Girls roll up/ windows roll down/ eyes on us/ jaws on the ground." (The words don't match any previously-recorded Spears track.)

Girls roll , windows roll ️, on us, jaws on the ground pic.twitter.com/HaSvfJ4baJ

-- Britney Spears (@britneyspears) April 9, 2015

Britney Spears Reveals Why She Recorded with Iggy Azalea

The duo's song is expected to drop soon. Earlier this week, Spears shared a photo that was widely assumed to be of the video's back-up dancers. "Aren't these girls pretty?" Spears tweeted alongside the pic. "Pretty Girls" is the rumored title of the collaboration.

Aren't these girls pretty? pic.twitter.com/WFwS0IPXnZ

-- Britney Spears (@britneyspears) April 8, 2015