If Party Rock Anthem began at "Everyday I'm shuffling" and didn't have any singing whatsoever it might be the song of the year. That beat is infectous.
Britney Spears - "Till The World Ends" definitely should have been the first single. I'd be okay with HIAM not being a single at all, haha.
LMFAO - "Party Rock Anthem (Feat. Lauren Bennett & GoonRock)"
Matt & Kim - "Cameras" -- You should totally check out more music from Matt & Kim! They have been great from their very first single, "Yea Yeah"!
Personally, I think Frankmusik has had better singles, which is why I didn't care much for DIITAM but still approve!