• Madonna performs in one of her concerts for the 'Rebel Heart' world tour

Madonna performs in one of her concerts for the 'Rebel Heart' world tour (Photo : Facebook/Madonna)

Madonna had an emotional public meltdown when she guzzled booze, begged for someone to "f- -k" her and called her ex-husband a "son of a bitch" at a packed concert in Australia on March 12, Saturday.

Dressed in a corset and tiny top hat, the 57-year-old beleagured pop queen was seen failingly trying to compose herself at the sold-out show in Melbourne. The singer was seen struggling to ride a child-size tricycle on stage while carrying a tequila bottle in one hand. At one point of time, she even sprawled on stage, but continued to hold the bottle before ranting about her personal life.

Like Us on Facebook

"Please, someone f- -k me," Page Six quoted the singer as saying to the crowd, before calling her former husband Guy Ritchie "a son of  a b***h."  She continued to drink on stage, occasionally throwing back shots during the performance.

Madonna, who is also a mother to daughter Lourdes, 19, and two adopted children David Banda, 9, and Mercy, 12, dedicated a song to the estranged son, while his childhood pics played in the background.

Madonna is reportedly undergoing through an ugly custody battle with her former husband, wherein her son Rocco, 15, has ditched her "Rebel Heart" tour in December to move in with his father, who lives in London with his newly wed wife, model Jacqui Ainsley, 33.

Earlier, the singer exhibited similar meltdown during her show at Melbourne's Forum recently when she kept the fans for four hours, only to appear on stage dressed as a clown, complete with pink wig and stripey stocking. The singer denied the rumors that she was drunk, but did admit that she requested for a cosmopolitan cocktail on stage.

Meanwhile, Rocco was spotted enjoying a bike ride with his father on March 12, Saturday, Daily Mail reported. Despite spending a hectic week in court listening to the lawyers of his parents sort out his living arrangement, the teenager looked relaxed and happy as he rode grinningly along side his father.

Watch the video below in which the "Like A Virgin" singer can be seen taking a sip from the audience while a tequila bottle is kept on the stage floor: