On the sets of 'Rock On', sources tell us that actress Koel Purie has bagged the title of being the sportiest adventurer from the team!!!!! On the last day of the shoot by the swimming pool, Farhan Akhtar challenged Koel Purie to be the first one to jump into the pool. Not ever one to back down from such a dare, Koel who we hear always has a bikini ready at a moment's notice shot off, and before anyone could even blink, she jumped into the pool!!!!