Top 40 Pop Songs Chart -- March 2013

Bruno Mars swapped spots with Swedish House Mafia to take over the #1 spot on this month's top 40. 'Don't You Worry Child' had been #1 for two straight months. Mars' latest hit 'When I Was Your Man' narrowly beat out Ke$ha who finishes in the #2 spot for the second straight month with 'C'mon.' The rest of the top five for March remained the same.

February had 11 debuts, but March has provided an even bigger shift, with 16 songs premiering on the countdown. Emeli Sande had this month's biggest debut, premiering at #18 with 'Next to Me.' Meanwhile, rock music continues to be heavily represented. Mumford & Sons returned to the countdown for the first time since 2010 with their cross-over hit 'I Will Wait.' Additionally, Muse makes its second appearance ever on the Top 40 with 'Madness.' They previously reached the countdown in 2009 with 'Uprising.'

Alicia Keys was on fire this month, jumping up the farthest in March from #34 to #21. No song is hotter on the Internet right now than 'Harlem Shake' which premiered this month at #36. Expect the Baauer hit to make a huge jump next month, as it continues to make its way around YouTube with countless amounts of parodies.

Check out the full top 40 for February below:

This Month	Last Month	Artist	Song
1	3	Bruno Mars	When I Was Your Man
2	2	Ke$ha	C'Mon
3	1	Swedish House Mafia	Don't You Worry Child
4	4	One Direction	Kiss You
5	5	Pitbull	Feel This Moment
6	11	The Script	Hall of Fame
7	7	Calvin Harris	Sweet Nothing
8	10	Olly Murs	Troublemaker
9	12	Maroon 5	Daylight
10	14	Macklemore & Ryan Lewis	Thrift Shop
11	6	Kelly Clarkson	Catch My Breath
12	9	One Republic	If I Lose Myself
13	17	Outasight	I'll Drink to That
14	23	Britt Nicole	Gold
15	24	The Lumineers	Ho Hey
16	25	Phillip Phillips	Gone, Gone, Gone
17	19	Will.I.Am.and Britney Spears	Scream and Shout
18	-	Emeli Sande	Next To Me
19	30	Imagine Dragons	It's Time
20	20	Of Monsters and Men	Little Talks
21	34	Alicia Keys	Girl on Fire
22	-	P!nk	Just Give Me a Reason (feat. Nate Reuss)
23	-	Mumford & Sons	I Will Wait
24	-	Chris Wallace	Remember When
25	-	Justin Bieber	All Around the World (feat. Ludacris)
26	-	Nelly	Hey Porsche
27	-	Icona Pop	I Love It
28	8	Marina and the Diamonds	How to Be a Heartbreaker
29	35	Ne-Yo	Forever Now
30	36	Fun.	Carry On
31	-	Cher Lloyd	With Ur Love
32	-	Benny Benassi	Cinema
33	-	Hot Chelle Rae	Hung Up
34	38	Justin Timberlake	Suit & Tie (feat. Jay-Z)
35	-	Trey Songz	Simply Amazing
36	-	Baauer	Harlem Shake
37	-	Fall Out Boy	My Songs Know What You Did In The Dark (Light Em Up)
38	-	Krewella	Alive
39	-	Little Mix	Wings
40	-	Muse	Madness

The Top 40 Songs chart is based on the highest listener-rated new pop songs on our Fresh 40, Top Pop and New Pop First radio stations.