Radio Top 20 (Updated 24 May) Courtesy CDUniverse

Check out and see who's making the hits in this week's Radio Top 20.

1.	OMG Usher Featuring will.i.am From the album: Raymond V. Raymond
2.	California Gurls Katy Perry Featuring Snoop Dogg From the album: California Gurls (feat. Snoop Dogg)
3.	Airplanes B.o.B Featuring Hayley Williams From the album: B.O.B Presents: The Adventures Of Bobby Ray
4.	Nothin' On You B.o.B Featuring Bruno Mars From the album: B.O.B Presents: The Adventures Of Bobby Ray
5.	Break Your Heart Taio Cruz Featuring Ludacris From the album: Rokstarr
6.	Not Afraid Eminem From the album: Not Afraid
7.	Your Love Is My Drug Ke$Ha From the album: Animal
8.	Alejandro Lady Gaga From the album: Fame Monster
9.	Rude Boy Rihanna From the album: Rated R
10.	Hey, Soul Sister Train From the album: Save Me, San Francisco
11.	Young Forever Jay-Z + Mr. Hudson From the album: Blueprint 3
12.	Need You Now Lady Antebellum From the album: Need You Now
13.	In My Head Jason Derulo From the album: Jason Derulo
14.	My Chick Bad Ludacris Featuring Nicki Minaj From the album: Battle Of The Sexes
15.	Over Drake From the album: Thank Me Later Pre-Order Now! Available: Tuesday, June 15, 2010
16.	Breakeven Script From the album: Script
17.	Telephone Lady Gaga Featuring Beyonce From the album: Fame Monster
18.	Billionaire Travie McCoy Featuring Bruno Mars From the album: Lazarus Pre-Order Now! Available: Tuesday, June 08, 2010
19.	Bulletproof La Roux From the album: La Roux
20.	Find Your Love Drake From the album: Thank Me Later Pre-Order Now! Available: Tuesday, June 15, 2010