This weekend on The iHeartRadio Countdown with Mario Lopez Matchbox Twenty frontman Rob Thomas joins us! He just released a brand new Christmas album with a ton of Christmas originals and some classics of course. He chatted with Mario about all that, Matchbox Twenty music, the holidays and more! Plus, we'll play some throwback classics, countdown the top 20 songs in the country, talk music news and more! Check out one of his new Christmas songs below and be sure to tune in this weekend!