all grown up by jackie-o
Stephanie McMahon's theme song "All Grown Up" is featured on WWE Anthology, Vol. 3: Now!. It can be purchased on iTunes.
Silkk The Shocker sings Mvp's theme song
the person is rapper Jacki-O
The "top of the pops" theme tune is all music and nobody sings in it.
Vince McMahons song is performed by Jim Johnstone, there was also a cover of the original song by Canadian band Theory of a Deadman.