Beyonce and Gwyneth Paltrow

Beyonce and Gwyneth Paltrow at Jay-Z's afterparty in London (09/27/06). Gwyneth and husband Chris martin joined hip-hop star Jay-Z on stage at London's Royal Albert Hall last night. It was widely expected that the 'Clocks' singer would perform a live duet with the rapper after he collaborated on Jay-Z's new album 'Kingdom Come', but the audience was shocked when his wife appeared to provide backing vocals for 'Song Cry'.
Meanwhile Gwyneth's husband Chris Martin has recorded a hip-hop track with Beyonce's man Jay-Z.

The 'Coldplay' frontman - famous for penning melodic hits - sang the vocals on the yet unnamed hip-hop tune for the rapper's new album.

Chris was reportedly so impressed with the urban sounds that he decided to try his hand at mc-ing, but his efforts will not be featured on the album.
A source told Britain's Daily Star newspaper: "Jay taught him a verse and he was recorded doing about a minute of it.

"It's not for Jay's album, it's just a bit of fun. Chris loved it and had a laugh holding the microphone like a rapper and grabbing his crotch while he was rhyming."

Despite getting snubbed by Jay-Z, Chris's rap has turned out to be a hit with the New York club scene, where the sample has been welcomed by rap fans.
The source added: "It's now on a mix-tape doing the rounds in New York."

Chris - who is married to actress Gwyneth Paltrow - has previously also collaborated with Kanye West and the 'Streets' rapper Mike Skinner.