Ce best-of de Janet est sortie le 17 Novembre 2009 aux USA sous le nom "Number Ones" et le 23 Novembre 2009 dans le reste du monde sous le nom "The Best" chez A&M Records.

CD 1:
1) What Have You Done For Me Lately
2) Nasty
3) When I Think Of You
4) Control
5) Let's Wait Awhile
6) The Pleasure Principle
7) Diamonds
8) Miss You Much
9) Rhythm Nation
10) Escapade
11) Alright
12) Come Back To Me
13) Black Cat
14) Love Will Never Do (Without You)
15) The Best Things In Life Are Free
16) That's The Way Love Goes
17) When I Think Of You (Remix, hors USA)

CD 2:
1) If
2) Again
3) Because Of Love
4) Any Time, Any Place
5) Scream
6) Runaway
7) Got 'Til It's Gone
8) Together Again
9) I Get Lonely
10) Go Deep
11) What's It Gonna Be?
12) Doesn't Really Matter
13) All For You
14) Someone To Call My Lover
15) All Nite (Don't Stop) (Uniquement aux USA)
16) Call On Me
17) Feedback
18) Whoops Now (Hors USA)
19) Make Me

Charts: n°22 (USA)
Ventes mondiale: 250 000 exemplaires