Gigi and Bella Hadid holding hands in bright pink and black dresses

Gigi Hadid and her little sister Bella Hadid turned to The Prince's Trust Gala! The 27-year-old sister trended head-to-toe at Valentino from the recent Pink PP main event, opting for an off-the-shoulder sequined mini dress, bright opaque tights, and sleek Mary Jane platform shoes. He held Bella's hand as they walked to a construction site in New York, the two of them posing for photographers outside before heading for the stage and replaying.

The California native looked elegant in a black strapless gown with a ribbon skirt and a skirt that was cut high enough to show off her chic black suede pumps. The brunette styled her hair into a bun while Gigi tossed her blonde hair down. Bella also added a simple diamond stud and necklace for her evening look.

Hosted by Lionel Richie, the Prince's Trust Gala Concert is in support of The Trust, which was founded by Prince Charles 44 years ago. The organization aims to support young people facing difficulties such as unemployment, poverty, mental health, abuse or disability through education, finding work, or even starting their own business - and has helped nearly a million people since its inception.

Gigi had a very festive week as she celebrated her 27th birthday at the members-only Zero Bond Club last Saturday. The blonde bombshell was beaming as usual in a white lace dress that included a bustier top and sheer trousers and a long coat. Sister Bella was, of course available to help Gigi with the occasion, and she was even seen holding a considerable balloon the day before! Other celebrities who attended the party included Gigi's BFF Blake Lively, friends Emily Ratajkowski, Anthony Porowski, Martha Hunt, and Helena Christensen.