By Eric Renner Brown
Updated June 29, 2015 at 12:56 PM EDT
Credit: Light Brigade/Bauer-Griffin/GC Images

Iggy Azalea dropped her Britney Spears-collaboration “Pretty Girls” in May with all the fanfare of a reigning song of summer queen. But even with the help of its wild music video, the track barely cracked the top 30 and has fallen steadily since. Azalea thinks that’s because of a lack of promotion, according to a Twitter Q&A she participated in Sunday.

“It’s difficult to send a song up the charts without additional promo and TV performances,” the Aussie rapper wrote. “I would have enjoyed performing it a lot, I think it got off to a powerful start. But you need content to compete in 2015.”

Azalea and Spears gave an energetic performance of “Pretty Girls” at the Billboard Music Awards, but offerred little else in the way of publicity. Beyond the single’s “flop”—in quotes because the track has already racked up more than 78 million views on YouTube—Azalea’s had a rough month. She canceled a massive tour and later explained that she scrapped six months of work on the follow-up to her 2014 smash The New Classic.