Radio Top 20 (Updated 28 June) Courtesy CDUniverse

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

1.	California Gurls Katy Perry Featuring Snoop Dogg From the album: California Gurls (feat. Snoop Dogg)
2.	OMG Usher Featuring will.i.am From the album: Raymond V. Raymond
3.	Airplanes B.o.B Featuring Hayley Williams From the album: B.O.B Presents: The Adventures Of Bobby Ray
4.	Billionaire Travie McCoy Featuring Bruno Mars From the album: Lazarus
5.	Find Your Love Drake From the album: Thank Me Later
6.	Your Love Is My Drug Ke$Ha From the album: Animal
7.	Alejandro Lady Gaga From the album: Fame Monster
8.	Cooler Than Me Mike Posner From the album: Cooler Than Me
9.	Not Afraid Eminem From the album: Recovery
10.	Break Your Heart Taio Cruz Featuring Ludacris From the album: Rokstarr
11.	Rock That Body Black Eyed Peas From the album: E.N.D. (Energy Never Dies)
12.	Bulletproof La Roux From the album: La Roux
13.	Nothin' On You B.o.B Featuring Bruno Mars From the album: B.O.B Presents: The Adventures Of Bobby Ray
14.	Hey, Soul Sister Train From the album: Save Me, San Francisco
15.	My First Kiss 3oh!3 From the album: Streets Of Gold
16.	Ridin' Solo Jason Derulo From the album: Jason Derulo
17.	Impossible Shontelle From the album: Impossible
18.	Need You Now Lady Antebellum From the album: Need You Now
19.	Young Forever Jay-Z + Mr. Hudson From the album: Blueprint 3
20.	Breakeven Script From the album: Script