I'd just like to say that by far Flo Rida has the MOST annoying music out of all mainstream pop artists (in my opinion). I seriously can't stand that high pitch sings that exists in almost all of his songs, it's so... ugh, just horrible to listen to. And his voice is seriously nothing special at all. If he can have a courier I can have a courier.
Sorry for being harsh but this is just my opinion (don't mean to hurt anyone's feelings).
A recent one is Fiona Apple, at least I haven't been able to yet. Maybe I should force myself to try again. She's so critically acclaimed, but nothing about her stood out that much to me... She sounds like a more minimalist Regina Spektor and it was good but kind of boring.