Justin Timberlake has certainly come a long way since being in the Mickey Mouse Club all those years ago. He's one of the biggest pop stars in the world, a pretty accomplished actor and as far as we can tell the sky is the limit for him. 

With his new album out, and his big tour with Jay Z this summer, we figured we would countdown our favorite JT songs - including the 'N SYNC days. How could we leave those out?

With now three solo albums out, and five albums with the boys in 'N SYNC, we have quite a bit of material to choose from. So what is his best song?

7. Girlfriend - 'N SYNC

6. Rock Your Body

5. Mirrors

4. Senorita

3. What Goes Around Comes Around

2. Bye Bye Bye - 'N SYNC

1. Cry Me A River