Lady Gaga
"Beautiful Dirty Rich"
[21 Days/DEBUT/Peak:5]
Demi Lovato
"Get Back"
[1st Week/DEBUT/Peak:19
Gym Class Heroes f/ The Dream
"Cookie Jar"
[1st Week/DEBUT/Peak:18]
Keri Hilson
"Energy"
[11th Week/-2/Peak:4]
Metro Station
"Shake It"
[4th Week/+1/Peak:14
Miley Cyrus
"7 Things"
[12th Week/-2/Peak:1(2)]
Coldplay
"Viva La Vida"
[8th Week/-7/Peak:2]
Ashanti
"Good Good"
[8th Week/-2/Peak:1(1)]
The Veronicas
"Take Me On The Floor"
[4th Week/-2/Peak:10]
OneRepublic
"Mercy"
[1st Week/DEBUT/Peak:11]
Top 10:
2nd Week
Previous:14
Peak Position:10
Note: This is the first time that Love Story enter the top 10
5th Week
Previous:12
Note: After attempting to enter the top 10 2 times,Cassie finaly reach her goal
3rd Week
Previous:9
Peak Position:8
NOTE: NONE
10th Week
Previous:5
Peak Position:1[3]
NOTE: Together with Lady Gaga,its the first time that Riri is out of the top 5
10th Week
Previous:4
Peak Position:1[2]
NOTE: Read Disurbia's Note.Oh and by the way,they beat Leavin's record.Leavin have 8 weeks at top 5 while GaGa and Riri spend 10 weeks at top 5
3rd Week
Previous:3
Peak Position:1[1]
NOTE: NONE
6th Week
Previous:8
Peak Position:4
NOTE: Demi has a 3 records for this week.She Share the record of two singles in the c/d.The other one is Paramore and The Ting Tings.the 2nd is she is the biggest climber this week.And third is,this is her first top 5 hit.
6th Week
Previous:6
Peak Position:3
NOTE: NONE
3rd Week
Previous:1
Peak Position:1[1]
NOTE: Looks like we have the two AI contestants at the top 2!
6th Week
Previous:2
Peak Position:1[1]
NOTE:After attempting to be #1,Carrie just reach her goal now.
Losers:
September "Cry For You" @ #20
Daughtry "What About Now" @ #19
Duffy "Stepping Stone" @ #18
Danity Kane f/ Missy Elliot "Bad Girl" @ #16
Glad you liked the Archie cap. 
