"We Found Love" by Rihanna featuring Calvin Harris jumps from #2 to #1 in its sixth week on the Hot 100. It's Rihanna's 11th #1, a total matched by only three other female solo artists in the chart's 53-year history. Mariah Carey leads among female solo artists with 18 #1 hits, followed by Madonna with 12 and Whitney Houston, also with 11. Rihanna this week pulls ahead of Janet Jackson, who has had 10.

Coldplay's Mylo Xyloto enters The Billboard 200 at #1, with first-week sales of 447,000 copies. This is the third biggest sales week of 2011, following Lady Gaga's Born This Way (1,108,000) and Lil Wayne's Tha Carter IV (964,000). It's the biggest sales week for a rock album since U2's No Line On The Horizon started with sales of 484,000 in March 2009.

It's not even Halloween yet, but Justin Bieber's "Mistletoe" enters the Hot 100 at #11. The song is from Bieber's holiday album Under The Mistletoe, which is due Nov. 1. "Mistletoe" is already the sixth highest-charting Christmas song on Billboard's pop chart since 1955. All of the Christmas songs that have climbed higher are from the 1950s except New Kids on the Block's "This One's For The Children," which hit #7 in 1989. New Kids, of course, were the reigning teen heartthrobs of their day.

There's a surprise at the top of The Billboard 200 this week. The surprise isn't so much that Adele's 21 returns to #1. The album hasn't ranked lower than #4 in its 35-week chart run. The surprise is that Casting Crowns' Come To The Well didn't debut in the top spot. Music industry prognosticators had expected that to happen, which would have made Casting Crowns the first Contemporary Christian group ever to reach #1.

Three of the hottest female stars of the past two decades enter the Hot 100 with the latest singles from their #1 albums. Curiously, they debut in reverse order from the magnitude of their albums' hit-generating status. Beyonce's "Countdown" opens at #85, Britney Spears' "Criminal" bows at #92, and Katy Perry's "The One That Got Away" starts at #94.

Joe Jonas' solo debut album, Fastlife, enters The Billboard 200 at #15, with sales of just 18K copies. That's a far cry from Jonas Brothers' fastest-selling album, A Little Bit Longer, which blew through 525,000 copies in its first week in June 2008. Simple math tells us that for every 29 fans who bought that album, just one die-hard loyalist sprung for this album.

Adele's "Someone Like You" logs its third week at #1 on the Hot 100 and also tops the 2 million mark in digital sales this week. Adele is one of only four lead artists to have two or more 2-million sellers in 2011. Katy Perry leads the pack with three. Bruno Mars and Lady Gaga have also had two. The difference, of course, is that Perry, Mars and Gaga all but define contemporary hit radio. Their records are mostly upbeat, hook-filled and ultra-catchy. Adele also gets played on contemporary hit radio, but she stands apart from it. She's definitely the one in this foursome who "doesn't fit" with the others.

Scotty McCreery's Clear As Day enters The Billboard 200 at #1.  You might expect a debut album by an American Idol winner to open in the top spot, but this is the first one to do so since 2003. Kelly Clarkson, the Season 1 winner, bowed at #1 in April 2003 with Thankful. Ruben Studdard, the Season 2 champ, followed suit that December with Soulful.