Azalea had blamed lack of publicity as the reason behind it not becoming popular while responding to a fan on Twitter.
She again took to Twitter to clear that her comments had nothing to do with Spears.
"No one is throwing 'shade' or 'shots' on either side of the table. The girl is my friend and i support her 100 per cent," Azalea tweeted.
"We remain friends and I haven't said anything negative at all about her. Does wishing we had promoted a single more make me the bad guy?" she added.