Pharrell Williams' 'Happy' holds at No. 1 on Billboard Hot 100 as 'Let It Go' enters top 10 [VIDEOS]

It's yet another "Happy" week on the Billboard Hot 100. Thanks to the golden Mr. Oscar, Pharrell Williams peppy G I R L single lands on top of the US Singles Chart for the third week in a row. But, he's not the only one to get a big boost from entertainment's biggest night. After weeks of looming in the top 20, Idina Menzel's stunning Frozen track "Let It Go" has also vaulted into the top 10.

According to Billboard, Pharrell's "Happy" easily landed at No. 1 for the third week in a row, gaining in both sales, streaming and radio airplay. "Happy" outsold the No. 2 digital song by over 100 percent, moving 490,000 copies over the last week. It's also the most-played song on the radio and the second-most streamed track in the country.

The massive sales and other success of "Happy" have been seen little since another Pharrell chart-topper, "Blurred Lines," ruled the Hot 100 for a dozen weeks last summer.

)

Of course, "Happy" isn't the only song on the charts. Katy Perry's trappy "Dark Horse" spends a third week in the No. 2 slot as it leads streams but falls in sales. Don't feel bad for the "California Gurl," though. "Dark Horse" led the Hot 100 for three weeks before "Happy" took the top spot.

Those massively successful songs are followed by a quiet riser, John Legend's "All Of Me," which reached a new peak at No. 3 this week thanks to strong digital sales (No. 2; 210,000 copies) and a slight rise in radio and streaming plays. That song switched places with Jason Derulo's new hit "Talk Dirty," which fell to No. 4.

)

The only new, interesting development on the Billboard Hot 100 this week comes courtesy of Idina Menzel's "Let It Go," which enters the top 10 in the No. 9 spot. Much like Pharrell, Menzel benefitted greatly from the Oscars, where "Let It Go" won Best Original Song and Frozen took home Best Animated Feature. "Let It Go" is still largely failing to get major radio play, but gained strongly with digital singles sales (185,000 copies) and streams (4 million).

)

The rest of the Billboard 200 holds steady from last week. Bastille's "Pompeii" remains at No. 5 for yet another week. The rest of the top 10 positions also remain unmoved, with Lorde's Team (No. 6), Beyoncé's "Drunk In Love" (No. 7), OneRepublic's "Counting Stars" (No. 8) and Pitbull & Kesha's "Timber" (No. 10) all sticking in last week's spots.