"A third speculated: "She absolutely knew what was happening, she didn't look that surprised, she knew fine #michaelmcintyresbigshow"Another viewer commented on the shock exposure, saying: "This woman absolutely knew what was happening #michaelmcintyresbigshow.
After a series of playful antics, including Lorna watching Strictly Come Dancing's head judge Shirley Ballas perform a risqué routine with an audience member, she finally opened the fridge door.
"Another admirer shared: "Amazing #MichaelMcIntyresBigShow," and yet another enthused: "Best part of the show - unexpected star.
"A different viewer exclaimed: "Lorna absolutely killing it on #MichaelMcIntyresBigShow amazing vocal talent!.
The awe-inspiring act led to a shower of compliments from the audience, as one fan effused: "#michaelmcintyresbigshow belted that out and made it look easy, well done.
