The 22-year-old singer recalled the playful confrontation in an interview with E! News. Cyrus has sported a platinum pixie cut since 2012, and called Bieber out on his bleach blonde locks during a recent run-in.
"I saw him the other day and I had to say, 'Bitch stole my look!'" she related. "I literally said it to him and he said, 'I'm growing my hair out.' I said, 'Yeah, me, too.' It's not easy with bleach. It's harder than it looks."
Bieber dyed his hair platinum in December 2014, but recently switched back to a brunette shade. The 20-year-old singer was spotted with darker locks at a Los Angeles Clippers game Thursday with Kendall Jenner and Hailey Baldwin.
Cyrus released her fourth studio album, Bangerz, in October 2013. The record debuted at No. 1 on the Billboard 200, and includes the singles "We Can't Stop" and "Wrecking Ball." The singer attended the Daily Front Row Fashion Los Angeles Awards with Rihanna and Katy Perry this week.