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By Daily Mail Reporter
Risque! Lady Gaga watches on stage as Semi Precious Weapons perform at Lollapalooza in ChicagoShe dresses to shock so often that Lady Gaga's outrageous outfits are almost becoming boring.
But the singer outdid herself last night - wearing nothing more than shorts and T-shirt made of fishnet stockings.
Taking a leaf out of Janet Jackson's book, she preserved her modesty with a simple star as she arrived for the Lollapalooza festival in Chicago.
But even Gaga didn't risk a stage performance in the risque ensemble.
Instead the Alejandro singer changed into a hard-wearing leather jacket and leopard print pants for her stage show - on top of the fishnet.
Gaga is one of the headliners of the annual show, along with Soundgarden and Green Day.
Hard-wearing: Gaga's hard-wearing leather outfit was perfect for onstageThe 24-year-old surprised fans when she made an early appearance on stage with her friends Semi Precious Weapons, the support act on her recent Monster Ball tour.
Frontman Justin Tranter told MTV: 'She stood on the side of the stage, and then during the song Magnetic Baby, she started playing drums with Dan.
'Then she started singing backup vocals, then her and I made out, and then she stagedove and then I joined her while she stage-dove.
'And then we made out while stagediving. And then she left. It was pretty amazing.'
Festival time: The Lollapalooza music festival is in Chicago[endtext]
