1. keeps gettin' better (not her career best, but worthy of another top 10 hit to her catalogue)
2. womanizer (not her career best as well, but she delivers another "britney" song for us)
3. so what (pink amazed me with this but it's too similar too all her works)
4. touch my body (very safe, but fun, not top caliber material though)
5. 4 minutes (cool, fun but too much of a sell out song)
...
...
...
...
...
the song that gave me huge disappointments this year, something that was on my most anticipated list
1000. if i were a boy (what's this? nothing compared to her past singles)
10,000. single ladies (sounds something that will be left-out of b-day! come on beyonce rethink your singles!)

1. So What
2. 4 Minutes
3. RETouch My Body
...
58. Womanizer
59. the rest

1) Britney Spears - Womanizer
2) Mariah Carey - Touch My Body
3) Madonna - 4 Minutes
4) Christina Aguilera - Keeps Getting Better
5) Pink - So What
6) Beyonce - If I Were A Boy

1. Womanizer/ Keeps Gettin Better / So What
2. Touch My Body / When I Grow Up
3.Come On Over
4. 4 minutes
5. Right Here (Departed)

---------------------------------
1. Bossy. (Best 'PROMO' comeback)

This is hard. Not feeling Beyonce's new song.
Considering all top5 are my favs.

Don't really care what the definition of 'Comeback' though.

^Bossy isn't even strong enough for a comeback single, but Lindsay's deff having her comeback.

My rank:
1. Britney Spears - Womanizer
2. Hilary Duff - Reach Out
3. Mariah Carey - Touch My Body
4. Beyonce - If I Were A Boy
5. Pink - So What
6. Christina Aguilera - Keeps Gettin' Better
7. Madonna - 4 Minutes

*sorry for putting Reach Out there. I just love my delusions.
7.

these are just their new singles... not comeback.
i hardly like any of these singles...

4 Minutes (crappy song but it grew on me)
So What (just an ok song... nothing special)
...
...
Keeps Getting Better (i still don't like this song, quite dissapointed actually)
Womanizer (umm... just no)
...
...

If I Were A Boy (very very boring)
...
...
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Touch My Body (this is a pure piece of garbage, one of the worst #1's in history, Retouch My Body is way better... at least is funny)

1. Pink - So What
2. Britney Spears - Womanizer
3. Mariah Carey - Touch My Body
4. Madonna - 4 Minutes
5. Christina Aguilera - Keeps Getting Better
6. Beyonce - If I Were A Boy

Beyoncé Knowles - If I Were A Boy - Haven't heard it yet.
Britney Spears - Womanizer - I can't believe I'm saying this but this song is actually much better than I expected. Still, its definitely nothing out of the ordinary.
Christina Aguilera - Keeps Gettin' Better - Mediocre and unoriginal.
Madonna - 4 Minutes - Energetic and fun. Same it becomes boring on the 10th play.
Mariah Carey - Touch My Body - Seriously, this song is the stupidest thing I've heard in ages.
P!nk - So What - The best song of the lot.

Only Queen Bee can make a SLOW song comeback, and still pwned ALL those songs above, cause well, duh, she's Beysus. And the rest of the comeback songs all extremely catchy.

Just listened to Beyonce.
Very good song.

1.Britney Spears - Womanizer
2.P!nk - So What
3.Madonna - 4 Minutes
4.Beyoncé Knowles - If I Were A Boy
5.Christina Aguilera - Keeps Gettin' Better
6.Mariah Carey - Touch My Body

1) Christina Aguilera - Keeps Getting Better
2) Pink - So What

I don't think the other ones should be called 'comebacks'. I mean Britney, Beyonce, Mariah ... had been quite active before they released those songs.
Talking about Britney and Womanizer, I'm laughing so hard at Britney's fans. Remember last year when she was in a hell of troubles ? And then she released Gimme More (inarguably much better than Womanizer) but the song couldn't just climb up the charts and no one even seemed to care.
Then, all of a sudden, she grabbed 3 VMAs and released Womanizer, which isn't as good as a piece of Gimme More and ppl start calling it the best comeback of the decade. I don't think it lives up to the standard set by any of her previous work. And it sounds like a complete rip-off of Ooh Ooh Baby from Blackout.

Don't push it, If I Were A Boy is good but it doesn't pwn all of the songs on this list, maybe some of them but not all.
And on that note, I have to say that IIWAB is getting boring now...And I only played it like 40-50 times .

1.) Womanizer
- the fresher and catchiest of them all.
2.) Touch My Body
- nice mid-tempo but it does get stale pretty quick.
3.) So What
- song was nothing special until the VMA performance.
4.) 4 Minutes
- when it fell off the charts, it grew on me.
5.) If I Were A Boy
- would like to LOVE this song, but it's such a Joan Osbourne rip-off of "What If God Was One Of Us" which turns me off. There's no emotion in this song, just Beyonce singing... best if Keyshia recorded this.
6.) Keeps Getting Better
- catchy, but I don't crave to hear it.

Beyoncé- If I Were A Boy- A great comeback song! I love the song and the video and she looks amazing like usual! This deserves to go #1 on all charts!
Britney Spears - Womanizer- Another great comeback song! I love the song and the video she is looking absolutely beautiful too! This has to go to #1 on all charts too!
Christina Aguilera - Keeps Gettin' Better- I love the song and I can't wait 2 the video! I love this sound compared to her last album and her new look is super hot! I'm glad this went top 10 on the Hot 100 and I hope it keeps climbing!
Madonna - 4 Minutes- My favorite Madonna song ever! I love the song and the video! I'm glad that in went top 3 on the Hot 100! I wish it could've gone to #1 but 3 is just as good! She is also looking great these days too!
Mariah Carey - Touch My Body- Great song and video! Probably the best song she's released all year too! She is looking hot these days also! I'm also glad it went to #1 on the Hot 100!
P!nk - So What- Pink came back very strong! This song and video are amazing! I'm happy that this went to #1 on the Hot 100 too!

1. Womanizer
2. So What
3. 4 Minutes
4. Touch my Body
5. Keeps Gettin Better

1.) 4 Minutes
- epic legendary abstract genius.

2.) Womanizer
- not as good as gimme more or even other black out songs but catchy and the video makes it even more genius

3.) Summertime
-new kids KILLED it with this amazing song and album

4.) Bossy
- hot song. love love love love it. needs a video

5.)Touch my titties
- hot song hot vid. more than i expected from mooriah

6.) Keeps getting floppier
- was ok when it came out but it has no lasting power and is weak.

7.) So What
- lame. generic pink. she needs to come out already

9999.) Like a Boy
- stupid retarded boring cheesy ugly.