Katy Perry's Teenage Dream album has produced 4 singles that have each reached the #1 spot on the Billboard Hot 100 chart.  Any artist that releases music dreams of having a #1 song, but its happened to Katy Perry 4 times off the same album!  With all of those #1 songs, Katy Perry has spent the last year inside the top 10 on the Billboard Hot 100 chart, marking the first time ever an artist has done that.

She was knocked out of the top spot last week thanks to Adele and Rolling In The Deep.  Katy Perry's reign at #1 started back on May 29, 2010 when California Gurls debuted at number 2.  That was followed by Teenage Dream, then Firework and now E.T.

Before Katy Perry resided in the Top 10 for over a year, Ace Of Base held the previous record of having a single in the top 10 for 48 consecutive weeks in 1993-1994 - with hits like All That She Wants, The Sign and Don't Turn Around.

Once I read this on Billboard.com, it reminded me that I hadn't heard the Ace Of Base songs in quite a while so they're here along with all 4 of Katy Perry's #1's for ya to check out!