Pop singer Fergie has unveiled plans for a tribute to her rock 'n' roll idol Slash, when the pair take the stage for a music festival in Los Angeles.

The former Guns N' Roses guitarist drafted in the 'My Humps' hitmaker to contribute vocals for his track 'Beautiful Dangerous', which appears on his self-titled solo album and now the 'Black Eyed Peas' singer is working with organisers on a planned salute to the rocker at the upcoming Sunset Strip Music Festival, where she's planning to join him onstage for a special performance, reports usmagazine.com.

'I'm really excited to rock out with Slash. My inner rock chick will emerge that night,' she said.

Fergie and Slash's rock duet will take place Aug 28 at House of Blues.