What should be my next song on YouTube?

If you haven't seen it, look at my YouTube account it's XxMiaTxX the link to my song is http://www.youtube.com/user/XxMiaTxX?feature=mhum#p/u/0/v21FIkvO7UM watch my video and answer what song should I sing next? I'm thinking about songs I like, but I can't think of any. I love Pixie Lott, but I CANNOT sing it. Trust me, already tried. I do like Bruno Mars songs and Christina Aguilera.So I need some recommendations for a song. Thanks in advance!!!