CELEBRITY ENGAGEMENTS

Sienna Miller has plenty to celebrate these days! The 30-year-old British actress gave birth to a healthy baby girl over the weekend while in London, according to Us Weekly. She shared the happy arrival with her baby daddy and fiancé, Tom Sturridge.

While most parents might balk at the idea of their 19-year-old daughter getting engaged, Miley Cyrus isn't one of them. According to reports, her parents are thrilled that their daughter is going to tie the knot with boyfriend of three years, actor (and hottie) Liam Hemsworth.

When Miley Cyrus, 19, and Liam Hemsworth, 22, announced their engagement, some found the news shocking considering the Disney starlet is still a teen. Many celebs have gotten engaged and even tied the knot at very young ages (some even younger than Miley)! Some of the marriages worked out, but for most, wedded bliss became a wedded miss.

After Mumford & Sons frontman Marcus Mumford tied the knot with girlfriend Carey Mulligan last week in a romantic English countryside wedding, we've had our eyes peeled for the next great rock n' roll love story. And it seems that we just found it. After just several months of dating—in true rocker fashion—25-year-old Kings of Leon bassist Jared Followill got engaged to 21-year-old model girlfriend Martha Patterson on April 11.

We wonder, do you have a celebration for this type of thing? Britney Spears' fiance and manager, Jason Trawick, was just awarded co-conservatorship of his soon-to-be wife, According to People. The decision was made by a judge in Los Angeles earlier today.

Jack Osbourne and fiancée, Lisa Stelly, welcomed their new bundle of joy on Tuesday, April 24, according to People. The adorable baby girl named Pearl weighed in at 8 lbs., 6 oz.

Even after six kids together, nearly one for every year they've officially been together, Angelina Jolie was still moved to tears when Brad Pitt finally proposed!

Celebrating your last remaining days as a single person is an occasion that shouldn't be taken lightly. That's why most bachelor and bachelorette parties are held in bumpin' cities like New York, Las Vegas or some exotic locale where the shenanigans can be as big and bad as you want them to be... as long as there is no photographic evidence.

While most of us would never dream of wearing hundreds of thousands of dollars (or even millions of dollars!) worth of diamonds on our finger, we still drool over celebrity engagement rings for their sparkle and massive bling factor.

Per his engagement last week to yoga instructor Hilaria Thomas, Alec Baldwin is now officially off the market (again). But, that didn't stop one crazy fan from getting his attention.

Alec Baldwin got an early birthday present this weekend -- a new fiancee!

In the end, Courtney Robertson beat out 24 other women for Ben Flajnik's love ... and one big engagement ring!

Jessica Biel's new engagement ring is beautiful...and huge! After dating off-and-on for nearly five years, Jessica Biel and Justin Timberlake finally made it official over the holidays while the couple was vacationing in Wyoming.

Last week, we leaned that Jersey Shore star Snooki is reportedly pregnant with her first child. Now, according to People, her beau of over a year and soon-to-be baby daddy, Jionni LaValle, has decided to make an honest woman of the bronzed star and popped the question!

On Sunday night, Natalie Portman hit the stage of the 84th Academy Awards to present the Best Actor Oscar. Just one year ago, she was pregnant and accepting the Oscar for Best Actress for her role in Black Swan, accompanied that night by her partner and baby's father, Benjamin Millepied.

Drew Barrymore, 36, is engaged to Will Kopelman – she began dating the art consultant, the son of former Chanel CEO Arie Kopelman in early 2011. Drew was spotted leaving the doctors office with her fiancé on Tuesday.