Musical guest Stevie Nicks confided to AOL TV that she, too, thought Morgan might give her a red X when she was performing on last night's results show.
Morgan not only didn't not buzz Nicks, he even gave her a standing ovation.
"That's so much better than getting buzzed," Nicks chuckled after the show. "I was thinking the whole time, Piers must be thinking about [giving me an 'X.'] I was hoping he wasn't. He absolutely would!"
Actually, unbeknownst to Nicks, he wouldn't -- but Morgan reveled in the mere possibility.
"That was one of the greatest moments of my career -- her worrying about my 'X-ing' her -- when she's probably my favorite rock chick ever," Morgan says. "She's one of my heroines. She's a proper rock star. There's more chance of me giving myself an 'X' before I'd give one to her."
Last night's results show saw Pop Lyfe, Landau Eugene Murphy, Jr., Lys Agnes and Professor Splash advance to the next round.
Yo-yo performer Ian Johnson didn't advance, but he did pick up a few potential dates after revealing on-air that he was on the market.
"I have gotten so many hits on my Facebook fan page from fans, which is awesome," Johnson says. "I'm going to try my best to respond to as many of them as possible."
'Fighting Gravity,' a favorite and finalist from last year, returned to perform on last night's show. The Virginia Tech students are hoping to open their own show in the near future in either Las Vegas or on Broadway.
"A lot of us went back to school and are finishing our degrees," says 'Gravity' spokesman Gregg Curtin, whose major is electrical engineering. "It could apply to the group somehow with special effects and lighting."
Magician Seth Grabel came up short when it came time for the judges to select the last act to move on -- they went with Professor Splash.
"It's going to be very hard [for Professor Splash] to make a 90-minute show," muses Grabel. "But he's got the 'Wow' factor. America loves that."
Grabel is hopeful he'll return for a wild card show (as do other ejected acts including Monet and the Summerwind Skippers.)
"It could work out greatly for my future," Grabel says. "I'm just happy I made it this far. I'm thrilled that America liked me enough to bring me to this point."
Is the magician ready for another performance should he get another chance?
"Yes. I have so many other things in the works. If they have me, I'm going to do something that America has never seen before."
'America's Got Talent' airs Tuesdays and Wednesdays, 9PM ET on NBC.