Gomez, 23, met the vocal powerhouse backstage before the sold-out residency show at the Colosseum at Caesars Palace on Saturday, March 12.
The “Hands to Myself” singer fangirled throughout the night, as she documented it all on Snapchat with a series of photos and videos.
“How cool do we look???” Gomez wrote, posing with her friends shortly after they purchased their T-shirts.
The concert marked Dion’s final performance at the Vegas venue until May 17. She recently went on hiatus after her husband and former manager, René Angélil, died on January 14 at age 73 after battling throat cancer.
The “My Heart Will Go On” singer, 47, returned to the stage on February 23, when she paid tribute to her late love with an emotional speech, a montage of pictures and a breathtaking performance of “With One More Look at You.”
“We were one and nothing has changed,” she told the audience at the time. “We will always be one.”
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