Former Disney star Miley Cyrus once again rocked the online world when she posed for a topless photo on Instagram on Saturday, June 14.

The "We Can't Stop" singer took a photo of herself in black and white underwear while standing in front of a mirror. Cryus, 21, tried to cover both of her breasts using her arms, but was unsuccessful.

As such, the former "Hannah Montana" star ended up with a nip-slip but covered it using a red octopus emoji, according to US Weekly. Cyrus then captioned the photo with "#preshoweralfalfaselfie,"

In another photo, the "Hands in the Air" performer shared a shot of herself wearing just her bra and underwear and wrote, "#postshowerinstagramwhoreselfie."

Meanwhile, Cyrus has been spending quality time with her younger sister Noah, who was with her when she recently vacationed in Barcelona.

Last month, the "Bangerz" singer also shared a video on Instagram that featured her and 14-year-old Noah dancing and twerking to some upbeat music, Daily Mail reported.

Other than her topless Instagram selfies and vacations, Cyrus is also busy with her "Bangerz" tour which will soon commence in Australia.

Cyrus will have 5 shows in various locations in Australia and ticket will start to go on sale starting Monday, June 16. Pre-sale tickets have already been made available starting Friday, June 14, News.co.au reported.

The tour will kick off at Rod Laver Arena in Melbourne on October 10, followed by a concert at the Brisbane Entertainment Centre on October 15, the Allphones Arena on October 17, Adelaide Entertainment Centre on October 20 and Perth Arena on October 23.

Cyrus' Australian "Bangerz" tour announcement came following the success of her US and Europe tours the past couple of months. The singer temporarily stopped her European tour following a viral sickness but got back in the concert scene with more confidence and personality.