Ashlee Simpson sexy Mexican Bikini Beach Babe Living it up while on holiday south of the border, bikini clad Ashlee Simpson enjoyed some time on the beaches of Mexico yesterday

Showing off her flawless bod, the 26-year-old mom of one sported a skimpy black and white polka dot bikini and a star hat while she, her gal pals and dad Joe lounged in the sun. 

Back at home things seem to be heating up between Ashlee and her "Boardwalk Empire" beau Vincent Piazza, as they were seen cozying up to one another at HBO's  Emmy after party last weekend.

Additionally, Simpson's ex, Fall Out Boy bassist Pete Wentz, has debuted his latest relationship to the world - stepping out with new model girlfriend Meagan Camper and son Bronx while in the Big Apple on Friday.

Simpson Sisters & Nicole Richie Los Cabos Ladies She just turned the big 3-0 this past Wednesday (September 21), and Nicole Richie celebrated the momentous occasion by spending time with her girlfriends in Los Cabos, Mexico over the weekend.

The former "Simple Life" star was joined at her posh South of the Border resort by her "Fashion Star" co-star Jessica Simpson, with Ashlee Simpson and her beau Vincent Piazza also on-hand as the group relaxed around a table while chowing down on a delicious meal. The group sighting comes after Miss Richie spent the previous few days soaking up the sun alongside fellow travel mate Samantha Ronson. Nicole was spotted sporting in a bright blue bikini on Saturday afternoon as she and a swimsuit-clad Miss Ronson romped along the shoreline and cooled off by taking a dip in the ocean.

Ashlee Simpson & Vincent Piazza's She’s never one to miss out on a good time, and last night (September 18) Ashlee Simpson was spotted at the Official HBO Emmy After Party.

The “Pieces of Me” songstress was joined by her handsome boyfriend Vincent Piazza, making it their third public appearance in a week. And of course, Ashlee was dressed to kill in a sexy red sequin dress with a plunging neckline and a pair of flirty earrings. Meanwhile Vincent’s show “Boardwalk Empire” won the Emmy for Best Directing in a TV Drama Series, so director Martin Scorsese was quite pleased.

Ashlee Simpson, LeAnn Rimes Glam Up Herve Always a favorite during the semi-annual style showcase, the Herve Leger by Max Azria Spring 2012 fashion show drew out the stars in New York City on Tuesday afternoon

Held at The Theater at Lincoln Center as part Mercedes-Benz Fashion Week, lovely ladies such as Ashlee Simpson and LeAnn Rimes lined the catwalk to take in the designer's new collection. Also on hand for the Herve Leger festivities were "Gossip Girl" actresses Jessica Szohr and Katie Cassidy - both of whom turned up in matching blue frocks. 

Of the show - which consisted of mainly metallic looks and knee-high gladiator sandals - Miss Rimes was simply smitten to be on hand, as she tweeted prior to kickoff, "Insane Herve Leger collection I just saw backstage! Getting ready to witness a fabulous show!! Cage boots.. my obsession!"

Ashlee Simpson was spotted at the Melrose flea market Taking advantage of a lovely Sunday afternoon, Ashlee Simpson was spotted in Los Angeles, CA on Sunday.

The “Pieces of Me” singer was joined by a group of friends as they perused the market and checked out all of the vintage goods. The sighting comes as it was reported last week that Ms Simpson had one too many and drunk-dialed ex-husband Pete Wentz to tell him that she missed him. Her rep denied the call ever happened, but a source told UsWeekly that Ashlee misses him and said she wanted him back.