Hollywood actress Jessica Alba has filmed a spoof music video to help her finance Cash Warren promote his new social networking internet site.

The Fantastic Four star - who is seven months pregnant - is seen lip-synching to Panic At The Disco's Back to the Streets in the video which has been posted on new site Ibeatyou.com, co-owned by Warren and his friend basketball player Baron Davis.

And the 26-year-old Latina has even posted a message on her Myspace Internet page, urging fans to sign up to the new site.

The statement reads, "Hey guys! Hope everyone had a great Easter. It's hot here in socal (South California). Being preggers in this heat takes everything to another level."

"We shot a quirky group lip dub music video for ibeatyou. Check it out!! We invited a bunch of users from the site and put this together last Saturday. Be well guys and check out our music video?hope you get a good laugh."