This weekend on The iHeartRadio Countdown with Mario Lopez our good friend Jerry O'Connell stops by! Jerry has a brand new talk show called 'The Jerry O Show' kicking off on August 12th that you have to check out! Plus he's got a new movie in the works as well and he's busy as a Dad of course. So we'll catch up with him, play some throwback classics and of course countdown the top 20 songs in the country! Tune in!