U Ctrl Katy Perry

I'm I'm soooo excited. I've just got back from holiday and found out that tomorrow Katy Perry is going to be on the show.

She'll be in with Scott from 5pm, then from 6.30pm on the Radio 1 website, Katy will be doing whatever you want her to do! You'll be able to watch her live on camera and actually be able to control whatever she does next for a whole hour. So, we need your suggestions. Let us know what you'd like Katy to do (within reason of course!) and she'll do it.

Ever wanted to see her juggling? Want to know if Katy can Moonwalk? Have you always wanted to see her make a ham sandwich?

Let us know your suggestions on Radio 1's Facebook, and Radio 1's Twitter - all the details for how U Ctrl Katy are right here.

Katy Perry's Teenage Dream Ends Eminem's Chart Run

All good things must come to an end and it looks like Katy Perry might be the one to stop Eminem's record-setting run at the top of the Billboard 200 albums chart. As expected, Perry's Teenage Dream will block Eminem from lodging his eighth week at #1 on next week's Billboard chart by selling 192,000 copies of her second official major label album, or more than four times as many as her first disc, One of the Boys, sold (47,000) in its first week two years ago.
According to figures provided by Nielsen SoundScan, Perry isn't the only one who bested Eminem. Former "American Idol" winner Fantasia bounces back from a dark personal period that included a recent suicide attempt by landing at #2 with Back to Me on sales of 117,000, which pushes Em's Recovery down to its lowest chart position to date, #3, on sales of 98,000.

There are some other newcomers in the top 10, though, including Usher, whose Versus mini-album comes in at #4 (46,000), followed by country rock act Little Big Town's The Reason Why (42,000), the Randy Rogers Band's Burning the Day (#8, 29,000) and hard rockers the Devil Wears Prada, whose Zombie EP sneaks in at #10 thanks to just under 25,000 units shifted.

The rest of the top 10: Kem, Intimacy (#6, 30,000); Justin Bieber, My World 2.0 (#7, 29,000); and Ray LaMontagne and the Pariah Dogs, God Willin' & the Creek Don't Rise (#9, 28,000).

After a nice run in the top 10 for three weeks, the Arcade Fire's Suburbs falls nine spots to #16 (21,000) as they pass the 250,000 mark, while Usher's five-month-old Raymond v. Raymond disc has a nice resurgence thanks to his new deluxe edition with seven new songs and a remix, surging up 12 spots to #19 as sales pick up by 57 percent to 20,000.

Beloved indie folkie Sufjan Stevens has a strong showing at #27 with All Delighted People (15,000), as do college rock faves Ra Ra Riot, whose Orchard lands at #36 (10,000). Though his single "Cooler Than Me" has lit up the charts all summer, Mike Posner's major label debut, 31 Minutes to Takeoff, has slid steadily down the chart since its debut two weeks ago, falling another 26 spots to #72 as sales dip to less than 6,000.