Britney Spears gives another Gleek peek

Britney Spears has teased Twitter fans with another glimpse of her cameo role in Glee.

The 28-year-old pop princess posted a photo of her posing with actress Heather Morris – who plays Brittany – on the set of the US TV show.

The picture mimicked a scene from Spears' video for Me Against The Music, her 2003 duet with Madonna.

The singer, however, switched positions from the video and took on Madge's role, while 23-year-old Morris played Spears.

"All my Gleekers in the crowd, grab a partner take it down," the pop star wrote beneath the snap.

The comment is a slightly altered version of the first two lines of her song.

The pop princess makes her appearance in episode two of the second series of Glee, in an instalment entitled Britney/Brittany.

She reportedly appears in the ether-induced fever dreams of the Glee club members after they visit the local dentist.

At least six Spears songs are understood to feature in the episode.