afi would be freakin' awesome, but i really don't see nessa doing that...
realistically though, i think something towards a real duet or something would go really well. if she did something with afi, she could show off her emo-erratic side, like if she did something along the lines of "wonder" or even "swindler"...
imagine the guy from afi hitting those crazy notes with nessa on "wonder"...omfg...hotness...
but really, i just think that nessa needs to think about doing something that will discretely promote her album, like doing a duet with a really popualr band/artist. whoever is her choice, whatever is her choice, and if it sounds good, well, of course it will sound good, its freakin' nessa we are disscussing here...