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"Well well well. Nickelback may have become a go-to pop culture punchline over the past couple years (remember the pickle that had more fans on Facebook?), but it looks like Chad Kroeger is having the last laugh. Out of nowhere, he&amp;#x27;s engaged to Avril Lavigne, and trust me--Kim over on Save the Date was as shocked as you and I are.I mean, who even knew they were dating? -- said all of America this morning. Nothing like a supposedly 14-carat ring to bust you right out of obscurity. But there are plenty of celeb couples still occupying the low-key ground. Depending on your level of celebrity romance awareness, I&amp;#x27;m betting you had no idea that at least a few of these couples existed. Olivier Sarkozy and Mary-Kate Olsen Let&amp;#x27;s get them out of the way, since they&amp;#x27;re approaching notoriety--I think we hear more about them in the NY local press than in the nationwide gossip tabloids. So to catch you up: the Olsen twin has been canoodling with the former French president&amp;#x27;s brother for several months now. Scarlett Johansson and Nate Naylor Scarlett and her latest fling were spotted gallivanting around Paris this week. He might have a famous-sounding name, but Naylor is totally outside the biz: he&amp;#x27;s an ad exec. John Slattery and Talia Balsam And speaking of ad execs... OK, diehard Mad Men fans might be angry that I didn&amp;#x27;t know this, but give me a break: as you may remember, I raced through the whole series in a month and didn&amp;#x27;t have time for gossip. When, in season five, Roger went to Mona for help, my two thoughts were: 1) man, Mona looks fabulous and 2) These two have such natural chemistry! Welp, maybe that&amp;#x27;s because this whole time, John Slattery and Talia Balsam have been married in real life. My mind was fully blown by that fact--and then I learned that Talia is the only woman who&amp;#x27;s ever been married to George Clooney. I mean... I am officially giving the woman a standing O in my apartment. Mark Duplass and Katie Aselton Ladies who love The League, this one&amp;#x27;s for you: didja know that Katie Aselton (center), who plays the wife with the wicked flair for fantasy-football domination, is actually married not to her on-screen husband (furthest right) but Mark Duplass, who plays single Pete (furthest left)? Jeffrey Dean Morgan and Hilarie Burton Had no idea they&amp;#x27;ve been dating since 2009. Had no idea they have a two-year-old son named Gus. But it&amp;#x27;s all undeniably very adorable. Rosemarie Dewitt and Ron Livingston Oh, my indie heart sings. Our girl Rosemarie (from Rachel Getting Married and many more) has been married to Office Space hero/SATC Post-It villain Ron since 2009--and now they&amp;#x27;re expecting their first baby. How many of these couples did you know about, sneaky genius readers? More on celebrity couples... WHAT? Avril Lavigne Engaged to Nickelback&amp;#x27;s Chad Kroeger Liam Hemsworth on Miley&amp;#x27;s New Do This Giggly GIF Sums Up Robert Pattinson&amp;#x27;s Responses to K-Stew Questions P.S. Want more Obsessed? Sign up for our awesome daily newsletter that features the latest celebrity gossip, TV news, hilarious Internet sensations, and more! Photo: Splash, YouTube, Fame/Flynet, Wikimedia Commons, FOX, Mediamatic"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.glamour.com/entertainment/blogs/obsessed/2012/08/in-honor-of-avril-lavigne-and>