Lindsay Lohan has given a little-known singer/songwriter a major boost by posting his tune on her latest blog posting - and calling for a duet.

The actress reveals she and her sister Ali are hooked on Kevin Rudolf's Let It Rock and they have been blasting it out on the set of Ugly Betty, where Lohan has been shooting a cameo.

She writes, "I heard that the singer wrote the song himself, so props to him for that, maybe we can do something together."

The song also got a big boost on U.S. Tv on Tuesday night (16Sep08) when it featured as part of Beverly Hills, 90210 spin-off 90210. (c) WENN