Christina Aguilera Shows Off Major Weight Loss, Justin Bieber Attends Selena Gomez’s Birthday Party: Top 5 Stories

Selena Gomez; Christina Aguilera; Kourtney Kardashian
Selena Gomez; Christina Aguilera; Kourtney Kardashian Kevin Mazur & Gregg DeGuire/WireImage; Brian Prahl / Splash News

Christina Aguilera shows off major weight loss, Justin Bieber attends Selena Gomez's birthday party, and Kourtney Kardashian flaunts her post-baby bikini body: See Us Weekly's top 5 stories from the weekend in the roundup!

1. Christina Aguilera Shows Off Major Weight Loss, Skinny Body at The Voice Event

Christina Aguilera definitely knows how to make her haters eat their words. The returning Voice coach turned heads at an NBC press event in Beverly Hills on Saturday, July 27, where she rocked the carpet in a tight pink minidress that revealed some major weight loss and a new, fit figure. The 32-year-old singer looked tan and rested in a clingy pink frock as she struck poses on the red carpet, her long blonde hair down in loose waves. A source tells Us that Aguilera has managed her slim-down with a combination of healthy eating and working out.

2. Kourtney Kardashian Shows Off Bikini Body

Who can keep up with that amazing bikini body? A week after Kourtney Kardashian, mom of two, hit the pool in a one-piece bathing suit, the E! reality star dared to bare — showing off her incredible bikini body in Miami on Tuesday, July 23. While hitting the beach at the Setai Hotel in Miami, the 34-year-old strolled the beach in a black and white striped string bikini. Her colorful, flowy coverup blew in the wind as she walked.

3. Justin Bieber Attends Selena Gomez's Birthday Party, Brings Singer Single Red Rose

It's so hard to say goodbye. Selena Gomez held yet another birthday celebration to ring in her big 2-1 with family and friends at Revolve Clothing beach house in Malibu on Saturday, July 27, with one famous (and unannounced) face making a late appearance: on-again, off-again boyfriend Justin Bieber.

4. Exclusive: DJ Khaled's Marriage Proposal to Nicki Minaj: "I Was Serious"

DJ Khaled is putting his heart on the line — all in the name of Nicki Minaj! While at MTV News on Thursday, July 25, the 37-year-old recorded a special video message to the "Super Bass" singer, confessing his major crush on her. "Nicki Minaj, I’m at MTV, I’m going to be honest with you; I love you. I like you, I want you, I want you to be mine," he said in the video. "Only reason I'm not telling you this face to face is because I understand that you're busy."

5. Kim Zolciak Shows Off Baby Bump While Working Out: Picture

Mamma mia! Kim Zolciak shared a snapshot of her growing baby bump with fans via Instagram on Saturday, July 27, and proved that even with a bun in the oven, she can still work up a sweat at the gym. "You asked for it … here is my baby bump this morning!" the Real Housewives of Atlanta captioned the photo, in which she poses with one hand protectively cradling her pregnant belly. In the photo, Zolciak, 35, wears a sports bra and sweat pants, with her blonde hair piled high on her head.

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