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Congrats are in order for Reese Witherspoon, who announced her engagement to Hollywood agent Jim Toth today. Toth, her boyfriend of one year, proposed with a 4-carat diamond ring, People reports. The pair join a growing group of celebrities to become engaged this fall, so there’s bound to be quite a few beautiful brides come 2011! Click through the gallery to see more recently engaged star couples. Plus: Tell us who you’re most excited to see walk down the aisle in the comments.

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1. There’s a rumor brewing that Rihanna may design for Topshop. Please let it be true! [Racked]

2. Take a behind-the-scenes look at Jennifer Lopez’s new commercial for L’Oreal. [People StyleWatch]

3. Recognize Natalie Portman’s fiancé Benjamin Millepied? You might—he’s modeled for Club Monaco. [The Cut]

4. Christian Louboutin will design shoes for designer Marlon Gobel’s upcoming fall menswear collection. Go Gobel! [Fashionista]

5. Get to know Glee cast cutie Chord Overstreet. Did you know he plays the flute? (Don’t worry—we didn’t either.) [JustJared]

6. Liv Tyler and Sarah Jessica Parker proved that it’s possible to look cute in the middle of a blizzard.  [StyleList]

InStyle designer (and part-time blogger) Jenni Radosevich knows an easy way to give your casual dress a little edge. In this month’s January issue (page 38), she shows you how to add an exposed zipper to your dress in two easy steps.

What You’ll Need:
Sweater dress, zipper trim, and waterproof glue.

How-To:
1. Measure down the center of the dress’s back to determine length of zipper trim required. Allow for two inches of trim above neck and below hemline.
2. Pin trim to dress to ensure zipper is straight. Working in 2-inch increments, remove pins, apply glue to dress, and attach trim. Hold in place for five seconds to secure. Fold loose ends into dress and attach with glue. Let dry for 24 hours. (Hand-wash only!)

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