Kelly Clarkson's return to the Las Vegas stage was certainly a memorable night. The Kelly Clarkson Show host, 43, commemorated her return to her Studio Sessions residency at the Colosseum at Caesars Palace on Friday, November 7, by helping two separate couples celebrate relationship milestones. Viral footage revealed Clarkson's reaction when one fan popped the question to his boyfriend in the front row. "Say, 'yes,' bitch," Clarkson playfully demanded. Once the couple were officially engaged, it was time for them to seal the deal with a kiss in front of an entire arena full of witnesses.