This week Azalea's "Fancy" with Charlie XCX climbed to the top of the Billboard Hot 100 while her collaboration with Ariana Grande, "Problem", is at No. 2.

This gives Azalea the distinction of matching the previous record held by the Beatles, which they set 50 years ago when their first two Billboard hits held the top two spots on the chart simultaneously.

Azalea reacted to the big news on Twitter. She tweeted, "Well I'm very pleased, last year seemed impossible to convince anyone in the music business I could break into the top 100. Haha."