We all know Gaga loves her eccentric outfits, and today's look did not disappoint!
The 'Do What U Want' singer rocked up at 12am to the grand opening, looking ready to party in a multicoloured jumpsuit.
The vibrant one-piece showed off her slender figure perfectly while the sweetheart neckline added a girly touch.
In true Gaga fashion she sported eye-wateringly high platform heels, which added at least a foot to her petite 5' 1" frame.
Armed with giant scissors and a bevy of hunks dressed in puffer jackets and motorcycle helmets, the starlet sported a huge grin while cutting the red ribbon.
The new 42,000-square-foot store will be a haven for H&M shoppers, and is also the first to sell the brand's highly anticipated collaboration with fashion designer Isabel Marant.
The best bit? Twenty of the first 1,000 fans in line randomly won the chance to indulge in a spot of retail therapy with Gaga before the store officially opened its doors.
Now that's a shopping trip to remember, right?
What do you think of Lady Gaga's outfit? Let us know by commenting below as the best comment across the site each week wins £50!
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