Posted December 26, 201014 yr Singles 32 - If We Ever Meet Again (Timbaland Featuring. Katy Perry) 29 - Teenage Dream 25 - Starstruckk (3OH!3 Featuring. Katy Perry) 21 - Firework 08 - California Gurls Albums 16 - Teenage Dream -- Katy Domination in the Singles Chart! Congrats! :D Edited December 27, 201014 yr by ChrIsGaGa
December 28, 201014 yr Pretty Amazing..I think Kylie was the last person to have 5 singles in top40 end of year charts in 1998
