During his chaotic final hours, Liam Payne told a fan he had been ‘f***ed up’ by his time in One Direction. The pop star, 31, also smashed his laptop after receiving an email that caused him to fly into a rage, according to guests at the luxury CasaSur Hotel in Buenos Aires, Argentina. Troubling details of Payne’s last day alive were revealed by witnesses who saw his erratic behaviour in the hotel lobby after he spent the afternoon drinking in his room with escorts.

The singer was also seen arguing about money with a woman, who is believed to have been one of the escorts, telling her: ‘I’ll give you $20,000 just because I can. I have $55million and I like to help people.’ Payne had been due to check out of the hotel on Wednesday morning, but was still there by late afternoon.

Rebecca – not her real name – an IT consultant from Washington DC, said she saw him acting erratically in the hotel’s lobby at around 4.30pm. She said he told her: ‘I used to be in a boy band – that’s why I’m so f***ed up.

’ Rebecca, 28, one of the last people to speak to the pop star before his death, said she was left ‘shaken’ after the encounter. ‘One of my friends was due to get his suite, so the hotel staff were a little on edge because he still hadn’t checked out at 4.30pm, but also because of his behaviour,’ she said.

She went back to the hotel lobby ten minutes later and soon after Payne , wearing a white vest, cargo pants and trainers, returned with his lapto.