After being criticized for showing up more than two hours late for a concert earlier this week, Madonna has now accidentally exposed a fan's breast onstage during another concert in Brisbane on Thursday night.

Although she was only 20 minutes late this time around, the Queen of Pop shocked concertgoers when she yanked down the top of a fan she invited on stage and exposed one of her breasts to an audience of thousands.

"She's the kind of girl you just want to slap on the ass and pull," Madonna said as she pulled down the unidentified woman's tube top, causing her boob to pop out in front of a shocked crowd.

The girl laughed off the indecent assault with Madonna was quick to apologize to the brunette. "Oh shit, I am so sorry, sexual harassment, you can do the same to me if you like," she said before adding, "You want to make my hole big again?"

Madonna has been making headlines for all the wrong reasons and this is the latest display of erratic behavior from the "Like A Prayer" singer during the Australia and New Zealand leg of her "Rebel Heart" tour.

Many believe her onstage meltdown and strange behavior is a result of the ongoing custody battle over her 15-year-old son Rocco, who left the popstar to live with his father Guy Ritchie in London.

Earlier this month, Madonna started crying onstage during a concert in Auckland, New Zealand as she showed the audience a picture of her son.

"That is my son who I mentioned earlier," she said. "He is actually 15, and its true, there is no love stronger than a mother for her son. And if I talk about him too much...I might cry. I'd like to dedicate this song to him. It's a love song for a man, but I know that he'll be one, one day. I hope he hears this somewhere and knows how much I miss him."

The singer arrived more than two hours late to her concert in Brisbane on Wednesday, leaving her fans fuming and asking for refunds.

Instead of apologizing to the audience, Madonna accused them of coming early to the venue. "It's you people that get here early, that's the problem," she said to the crowd. "Stay home, do your hair and makeup, have a tequila. Roll yourself a fat one."

Madge was also accused of turning up intoxicated for her shows but later took to social media to deny the allegations.