article: List of Billboard Hot 100 number ones of 2012
links: We Are Young Kimbra Rihanna Part of Me (Katy Perry song) We Found Love Set Fire to the Rain Fun (band) Kelly Clarkson Adele Gotye Calvin Harris LMFAO (group) Billboard Hot 100 Billboard (magazine) Call Me Maybe Carly Rae Jepsen Stronger (What Doesn't Kill You) Janelle Monáe Somebody That I Used to Know Katy Perry Sexy and I Know It