Jay Sean counts down his top ten current UK and US hits.

It's New Year, New Music on 1Xtra, so we've turned the schedule on it's head and made MistaJam get up extra early for the week! Show more

New Year, New D&B. You get the biggest and best D&B 12 hours early! Including Bailey's Hot for 2011 tip Loadstar in the studio, plus the latest 1Xtra News! Show more

Check out what Crissy usually gets up to in the small hours. Show more

Ace sits in for the Big Dawg with more new music for the New Year, plus the latest 1Xtra News. Show more

MistaJam's looking after breakfast all week, so Target's here with the best new music for the New Year. Check out his Hot 4 2011, Targo Embargo and Tarjay Menage! Plus a clip of Nero's essential mix!

Xtra beats in and out the mix with Rampage. DnB vocalist Riya joins the guys, plus there's a guest mix from Dennis Ferrer. Show more

Radio 1 celebrates 20 years of the Essential Mix with a classic picked by Toddla T - Roska from 2010. Show more

Next up, it's Ibiza Rocks resident Doorly and his Essential Mix from back in September 2010.

Rounding off our trio of Essential Mixes, it's dubstep duo Nero on the decks - first broadcast in November 2010.