The Bad Guy singer was seen outside popular vegan eatery, Mono, in Merchant City, alongside co-writer, producer and brother Finneas ahead of her show at the OVO Hydro tonight.
The 20-year-old singer will perform to the sold out crowd on Tuesday night, as part of her ‘Happier Than Ever – The World Tour’ dates, as she continues to jet around the UK.
Billie was seen all smiles outside the plant-based restaurant as she posed for pictures with excited followers.
Dedicated fans from around the world have already been spotted queuing for the concert in the tunnel bridge near the venue.
The young star had to stop her show at London’s O2 arena on Saturday after several fans got into difficulties in sweltering temperatures.
“Are you all ok?” she asked. “People were fainting and getting pulled out. It’s hot, I know”.
After fans said they were “squished”, she halted the music until the pressure in front of the stage eased.
“Take a step back, give everybody some space,” Eilish said. “If someone looks a little woozy, just tell someone.”
Billie Eilish will perform to a sold out crowd at Glasgow’s OVO Hydro on Tuesday, June 14.
Get the latest celebrity gossip and telly news sent straight to your inbox. Sign up to our weekly Showbiz newsletter here .