Jamie Lynn Spears gets engaged, Jason Segel makes first appearance after Michelle Williams split, and Kate Middleton buys a $55 maternity dress: See Us Weekly's top five stories from the weekend in the roundup!

1. Jamie Lynn Spears Engaged to Jamie Watson: See Her Ring!

Here comes the bride! It looks like there's going to be a wedding in the Spears family after all -- Britney's little sister, Jamie Lynn, is engaged to her boyfriend of three years, Jamie Watson.

2. Jason Segel Smiles, Rides a Scooter in West Hollywood After Michelle Williams Split: Picture

Scooting through life post-break up! Jason Segel was spotted cruising through West Hollywood on Saturday, March 2 in his first appearance following his split from Michelle Williams.

3. Exclusive: Kate Middleton Buys $55 Maternity Dress From Topshop

Kate Middleton is Lovestruck -- by a dress! The pregnant Duchess of Cambridge did a little maternity shopping this week at a London TopShop, where she picked up a sweet flowered frock by U.K.-based clothing concession Lovestruck, a rep for the company confirms exclusively to Us. 

4. Ben Affleck Protects Daughter Seraphina, 4, From "Menacing" Paparazzi

As one of the biggest movie stars in Hollywood, not to mention an Academy Award-winning director, Ben Affleck knows the price of fame. And he's usually happy to pay it -- except when it puts his kids in danger. On Friday, March 1, things got a little too close for comfort when he and his 4-year-old daughter, Seraphina, were swarmed by some particularly aggressive paparazzi outside her school.

5. Justin Bieber's "Worst Birthday" Ends Abruptly After Confrontation With Club Security

Looks like Justin Bieber's happy birthday had a very unhappy ending. Shortly after heading out to celebrate turning 19 years old on Friday, March 1, the singer returned to Twitter with a short but telling summary of his night.

This article originally appeared on Usmagazine.com: Jamie Lynn Spears Gets Engaged, Jason Segel Steps Out After Michelle Williams Split: Top 5 Stories From the Weekend