Pop star Britney Spears has teased the music video and lyrics for her new track with Iggy Azalea, 'Pretty Girls', on Twitter. The singer posted an image of herself seemingly filming the promo clip, alongside a caption of what appears to be lyrics, reported Ace Showbiz. On our way to set like. pic.twitter.com/LX2RJRvLE5 — Britney Spears (@britneyspears) April 11, 2015 Britney has previously teased 'Pretty Girls' with another tweet of dancers in a rehearsal studio. Aren't these girls pretty? 😉 pic.twitter.com/WFwS0IPXnZ — Britney Spears (@britneyspears) April 8, 2015 Another image of the singer in the car with Iggy Azalea has also been circulating. Girls roll 🆙, windows roll ⬇️, 👀 on us, jaws on the ground pic.twitter.com/HaSvfJ4baJ — Britney Spears (@britneyspears) April 9, 2015 Azalea has already spoken out about the single, saying "it's a true duet" after she rewrote some of the track. 'Pretty Girls' is expected to be released in May.