Best UK pop artists of 2009-2011?

im american,and theres a reason why i went to yahoo answers uk &ireland, lol. well idk, artists from the UK such as Jessie J, pixie lott, the saturdays, the script, the wanted, lily allen, and cheryl cole have such good music and its better than the pop here, in my opinion. so since your most likely british or irish,what other uk artists do you think i'll like to listen to? who's your favorite? Thank you loves <3;