Billie Eilish will never do a three-hour set.

The 22-year-old Grammy winner - who is set to embark on her 'Hit Me Hard And Soft Tour' - has branded lengthy concerts "literally psychotic", and admitted she wouldn't even want to watch her favourite artist for that long.

She reportedly told fans on Stationhead: “I’m not doing a three-hour show, that’s literally psychotic.

“Nobody wants that. You guys don’t want that. I don’t want that. I don’t even want that as a fan. My favourite artist in the world, I’m not trying to hear them for three hours. That’s far too long.”

The 'Lunch' hitmaker's jaunt will start in North America, and will continue with shows in the US and Canada from the tour's beginning through to the middle of December.

The 'What Was I Made For?' singer restarts the tour in Australia in February the following year, and will eventually make her way over to Europe, where she will conclude 'Hit Me Hard and Soft' in Dublin, Ireland before the end of July.

Meanwhile, Billie recently gushed that she has never "loved something more" than'Hit Me Hard And Soft'.

The pop superstar - who made the record with brother and collaborator Finneas - gushed on Instagram: “HIT ME HARD AND SOFT” my third album is f***ing out now i don’t even know what to SAAYY... @finneas and i put so much into this album and have never ever ever loved something more. we hope you enjoy it so much and i’ll see you on the other side EEEEEEEEEEEEEK HMHAS OUT NOW EVERYWHERE LOVE YOU ALL TO DEAAAAATH!!!! (sic)"