It only took him 10 years, but Robin Thicke has finally landed his first-ever #1 album on the Billboard chart. 

Blurred Lines, featuring the #1 title track, sold over 177,000 copies its first week in stores, according to Nielsen Soundscan.  That total exceeded initial sales forecasts made by industry insiders, which projected Robin's album to move around 150,000 copies.  Blurred Lines is Robin's sixth studio album; his first, A Beautiful World, came out back in 2003.

Meanwhile, "Blurred Lines" the song has been #1 for eight weeks, and Billboard reports it's now overtaken Imagine Dragons' "Radioactive" to become the second-biggest selling song of 2013, second only to "Thrift Shop."  That Macklemore & Ryan Lewis hit has sold 5.8 million copies, while "Blurred Lines" has sold 4.3 million.

Robin tweeted, "No. 1 single and album right now... I'm speechless. Cannot thank you all enough for believing in my music."   His dad, actor Alan Thicke, is pretty happy as well. "I've never been this proud of anything I've done," he tweeted a few days ago.

Elsewhere on the chart, Backstreet's back, all right.  The veteran boy band's new album, In a World Like This, debuts at #5. It's their ninth straight top-10 disc, and their highest-charting album since 2005.

A younger boy band, Emblem3, also makes the top 10 with its debut Nothing to Lose. which enters at #7.  They've currently got a hit with their song "Chloe."  The group came in fourth on the 2012 installment of The X Factor; the winner, Tate Stevens, only made it to #18 with his debut album, back in May.  The winner of season one, Melanie Amaro, has yet to release an album.

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