Veteran actress Rekha will be lending her vocal prowess for a promo for the controversial reality show `Bigg Boss 15`. Rekha said: "Bigg Boss is a very `naayab` show, that has all drama, action, fun and thrill and what`s more, you get a crash course of life itself. And if one is patient and resilient, one will evolve to be one`s best self! What could be better poetic justice than that."

The timeless diva will be doing a special voiceover for a tree in the promos of the show, hosted by Bollywood superstar Salman Khan on television.