Filmmaker-choreographer Farah Khan revealed she lured actresses into doing the ‘Deewangi Deewangi’ song in 'Om Shanti Om' by telling them that designer Manish Malhotra would create their costumes and they could keep the outfits after shoot. "Manish wasn't only a part of the song...but he also came with me to meet every heroine who was in that song," Farah added.