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Nineties alt-rockers Garbage rocked David Letterman's "Late Show" earlier this week, reigniting our love of recycling, er, nostalgia.
Late night — and TV in general — has been the launching pad for countless singers and bands, and now that we live in an era where no pop cultural is ever thrown away, we decided to dig though the online landfills to find the first TV performances by acts who are now larger than life, from Lady Gaga's reality TV debut, to Justin Timberlake's ignoble one, to Kurt Cobain’s hilariously shocking shout-out to Courtney Love on UK TV.