Don't ask Ariana Grande about Mac Miller.

The 23-year-old singer appeared on Ryan Seacrest's radio show on Thursday, and all seemed to go according to plan -- until Seacrest asked about her new boyfriend.

WATCH: Ariana Grande and Mac Miller Are Instagram Official -- See the Cuddly Snap!

"You recently confirmed your relationship with Mac Miller on Instagram," Seacrest said during the interview, referring to a black-and-white photo Grande posted of herself cuddling with Miller last week.

"I mean, is that that [picture] means?" Grande snapped back.

"Well, did you confirm something?" Seacrest pushed.

And that's when Grande let loose.

"If I post something, that's what I'm willing to share at that moment," she said. "That doesn't mean then you, Ryan Seacrest, with millions of listeners are entitled to more information."

WATCH: EXCLUSIVE: Ariana Grande Spotted Kissing Mac Miller, Dancing on His Lap at VMAs After-Party

While Grande was clearly upset by Seacrest's questions, things seemed to go more smoothly on "The Ellen DeGeneres Show" on Wednesday.

The "Dangerous Woman" singer blushed and started fidgeting when the talk show host asked about her new man, but eventually fessed up.

"This is so crazy," she told DeGeneres. "I've never had the relationship talk on a show before. No pressure."

WATCH: EXCLUSIVE: Ariana Grande Plays it Coy About Mac Miller Relationship But Brother Frankie Approves: 'Whatever Makes Her Happy'