Who is tweeting for Iggy Azalea? The OK sounding Australian blonde model rapper has learned nothing over the past few years about the pitfalls of social media and the damage tweeting reckless can have on your career.

On Sunday, Iggy was asked during a Twitter Q&A why her crappy song with Britney Spears called “Pretty Girls” didn’t become a hit. The “Fancy” artist placed the blame on Ms. Spears, saying, “It’s difficult to send a song up the charts without addition promo and TV performances etc. Unfortunately, I’m just featured.”

Britney caught wind of the response and fired back on Monday, poking fun at Iggy who was forced to cancel an upcoming tour because of poor ticket sales.

Can’t wait to get back to Vegas. So thankful I have shows for the rest of the year to look forward to… #YouWantAPieceOfMe

— Britney Spears (@britneyspears) June 29, 2015

Yikes. An epic burn, and a #factsonly burn at that. Britney is currently in the final year of her two-year residency at Planet Hollywood Resort and Casino in Las Vegas where she’s taking home $15 million a year.