Madonna and Lady Gaga trade blows

Pop diva Madonna and singer Lady Gaga stunned America on Saturday night by staging a catfight on live TV.

The two performed a synchronised dance-off, dressed in matching black lingerie and knee-high boots, as part of a comedy skit on Saturday Night Live, which was called to a halt when Madonna started pulling Gaga's wig and throttling her, yelling, "What the hell is a disco stick?" referring to the younger star's hit, reports gossip.ie.

The "feuding" pair was separated by the host of fictitious MTV show Deep House Dish, but a comedy war of words ensued as Gaga, the show's musical guest, said: "Guess what Madonna, I'm totally hotter than you," to which the latter replied: "Hey, guess what, I'm taller than you. What sort of a name is Lady Gaga; it sounds like baby food."

The pop pair ended the skit by moving in to kiss and make up.

It was a star-studded Saturday Night Live with Ryan Reynolds guest hosting and his wife Scarlett Johansson playing his comedy spouse in a skit about a family porcelain fountain firm. Reynolds also raised laughs as a prison dance instructor in fictitious show So You Committed A Crime & You Think You Can Dance, a segment hosted by comedian Andy Samberg as Britney Spears' overweight ex, Kevin Federline.