Pop diva Mariah Carey has vowed that neither cold weather nor performing in China will prevent her from putting on a show in Shanghai - complete with her trademark revealing costumes. 'If it's raining and cold, I'm still going to be in the same skimpy outfits that I would be wearing if it was hot out,' she told reporters after arriving almost an hour late for a news conference. The singer will hold two concerts in Shanghai this week to spice up the annual Shanghai International Arts Festival. Tickets for the evening shows for tomorrow and on Friday have largely sold out. Wearing a long, low-cut black evening dress, Carey said she was happy to be in Shanghai for her first concerts on the mainland. She has performed previously in Taiwan. The show will be largely the same as the one performed in other cities on her latest world tour, including seven or eight costume changes ranging from 'funky to elegant'. 'It's pretty much the same show that I've been doing all over the world,' she said. Carey appeared tired after flying in from overseas last night. She entered the room for the news conference through a service entrance, surrounded by three bodyguards. Organisers warned reporters not to ask any questions about her personal life. Her 2001 album Glitter, which also served as the soundtrack to her feature film debut, was a famous flop and in July that year, she was admitted to hospital after suffering a mental breakdown. Her ex-husband, Tommy Mottola, the architect of her career, stepped down as chairman of Sony Music early this year. They divorced in 1998. The singer is staying in the Hilton hotel in the centre of Shanghai. Minders shifted her from the presidential suite to another set of rooms because of the more feminine wall colour - cream with touches of lavender. Carey has ordered bouquets of fresh pink flowers for her suite, as well as four humidifiers to help keep her voice fresh. Her 60 pieces of luggage, said to include 350 pairs of shoes, have sparked the interest of local newspapers, which ran photos of her suitcases yesterday.