Chart Highlights: Vita Chambers Holds @ #1, Rihanna Debuts @ #10

This week, we have Vita Chambers holding at #1 with her smash hit single "Fix You". The single widens its gain over the #2 song, and gains by about 7% in airplay.

Macklemore & Ryan Lewis hold at #2 for a 4th consecutive week with "Thrift Shop (feat. Wanz)". The single is down less than 2% in airplay.

"Don't You Worry Child (Radio Edit) [feat. John Martin]" holds at #3 after peaking at #1 for 8 weeks. To date, it has spent 13 weeks in the top 5. If the single rises in enough airplay during the post-Valentine's Day slowdown, Swedish House Mafia could become the first group to have a #1 song run for 9 weeks.

Olly Murs lifts 6-4 after stalling for three weeks with "Troublemaker (feat. Flo Rida)".

After collecting two back to back #1 singles last year with "Euphoria" and "My Heart Is Refusing Me", Loreen is back in the top 5. This time she rises 10-5 with "Crying Out Your Name". If the single can nab #1, Loreen would become just the 4th artist/group to collect at least three #1's after Maroon 5 (3 consecutive), Rihanna (4 non-consecutive), and Nicki Minaj (4 non-consecutive).

"Sweet Nothing (feat. Florence Welch)" by Calvin Harris slides 4-6 after commanding the list for 2 consecutive weeks in January and February.

Rihanna's "Diamonds (Shahaf Moran Remix Radio)" drops 5-7 after occupying a position in the top 5 every week for 20 consecutive weeks. This ties the record for "Most Weeks in the Top 5" also set by Rihanna ("Where Have You Been").

In its 19th week on the chart "How to Be a Heartbreaker" by Marina and the Diamonds moves 9-8.

After moving 8-7 last week, Maroon 5's "Doin' Dirt" descends 7-9. It becomes their first single to miss the top 5 in their entire chart history. "Moves Like Jagger (feat. Christina Aguilera)" peaked at #5, "Payphone (feat. Wiz Khalifa)" peaked at #1(x4), "One More Night" peaked at #1, "Love Somebody" peaked at #1, and "Lucky Strike" peaked at #3.

Rounding out this week's crazy top 10 is Rihanna. She debuts at #10 with "Stay (Shahaf Moran Remix)".

Come back this weekend for the full chart!