After a pause of three years, when Karan Johar took the director's chair in 'Ae Dil Hai Mushkil' there had to be glittering cameos! Other than Aishwarya Rai-Bachchan, Anushka Sharma and Ranbir Kapoor, who were roped in as the leads for the movie, the 'Student of the Year' helmer's favourite dulhania, Kajol has also joined the cast but will be seen for a short while.