Jazz is on the way

Lately, i've found some song which sounds familiar but i don't know the title. As example, the soundtrack of iPhone 4 ads, OST step up 3D in moose and camelle dancing part. I really like both of the song and guess whaat?

1. the iPhone 4 ads = when you're smiling = Frank Sinatra or Louis Armstrong
2. OST step up 3D moose & camelle dancing part = I won't dance = Frank Sinatra or Louis Armstrong

See? I fall in love with those songs before i knew who sing it. Fortunately, it was singing by my favorite jazz singer of course, Frank Sinatra.