Top 40 music genres

For this weeks official top 40 singles in the UK the the top 40 are:
1.When we collide-Matt Cardle
2.Whats my name-Rhianna FT Drake
3.The time (Dirty Bit)-Black Eyed Peas
4.Your song-Ellie Goulding
5.Firework-Katy Perry
6.Only girl (in the world)-Rhianna
7.The flood-Take That
8.Like a G6-Far East Movement/Cataracs/Dev
9.Whip my hair-Willow
10.Thinking of me-Olly Murs
11.Lights on- Katy FT Ms Dynamite
12. Forget you-Cee Lo Green
13.Who's that chick-David Guetta FT Rhianna
14.Just the way you are-Bruno Mars
15.Invincible-Tinie Tempah FT Kelly Rowland
16.Coller than me-Mike Posner
17.Shine a light-McFly FT Taio Cruz
18.Do it like a dude-Jessie J
19.Lose my mind-The Wanted
20.Girls-N-Dubz
21.Raise your glass-Pink
22.Hold my hand-Michael Jackson FT Akon
23.Love you more-JLS
24. Happiness-Alexis Jordan
25.Written in the stars-Tinie Tempah FT Eric Turner
26.Just a dream-Nelly
27.Love the way you lie- Eminem FT Rhianna
28.Poison-Nicole Scherzinger
29.Dynamite-Taio Cruz
30.The flood-Cheryl Cole
31.Make you feel my love-Adele
32.Check it out-Will I Am & Nicki Minaj
33.Promise this-Cheryl Cole
34.More-Usher
35.Higher-Saturdays FT Flo Rida
36.Pass out-Tinie Tempah
37.Many of horror-Biffy Clyro
38.Barbra Streisand-Duch Sauce
39.Please dont let me go-Olly Murs
40.Magic-Bob FT Rivers Cuomo
When you look at this chart there is only an odd one song that can be linked to rock, but then again the songs are only just in the rock range Next I am going to look into the Kerrang radio and look at the amount of rock songs they play in their show.