Lindsay Lohan has been axed as the host of the World Music Awards 2008 and replaced by actree Denise Richards. Apparently organisers weren’t too confident in Lindsay’s ability to present the World Music Awards in Monaco next week.

Lindsay - who is reportedly engaged to her girlfriend Samantha Ronson - was said to have reacted badly when organisers booked ‘Desperate Housewives’ star Jesse Metcalfe to co-host the ceremony. A source said: “Lindsay was furious she wasn’t the main star. The organizers had gone through a list of who was hot at the moment and returned to Lindsay again.

Actress Lindsay Lohan has confirmed she has been dating Samantha Ronson for “a very long time”, according to US reports.

The 22-year-old former girlfriend of Calum Best has frequently been seen partying with Ronson (31), but has never publicly commented about the extent of their relationship until now.

Lohan told the US radio show Loveline that she had been dating the DJ, whose brother is Brit Award winner Mark Ronson, “for a very long time”.

DJ Ted Stryker interviewed Ronson while she took a break from working at TV Guide’s Emmy afterparty on Monday night in Los Angeles.

Ronson had been discussing her friendship with DJ AM and Travis Barker, who are recovering from severe burns following a plane crash in South Carolina last weekend, before putting Lohan on the phone.

Lohan’s publicist, Leslie Sloane-Zelnik, who has previously denied the pair were going out, said Lohan was not engaged to be married.

Lindsay Lohan looks set to marry her DJ girlfriend Samantha Ronson.

Party girl Lohan has been spotted sporting a huge heart-shaped engagement ring.

Meanwhile, Ronson halted her set at the Chateau Marmont nightclub in Los Angeles to declare to clubbers: “By the end of this year, my love will be Mrs Ronson.”

The couple, who have never publicly confirmed their romantic relationship, are believed to have been dating for about a year and have been living together since May. Same-sex marriages became legal in California earlier this year.

However, Lohan’s father, Michael Lohan, yesterday hosed down rumours of impending nuptials for his daughter.

Linsday Lohan has turned down an offer to pose nude for Playboy and declared her love for Samantha Ronson in code.

Her publicist let the famed magazine know that Lindsay is not interested after doing the nude photoshoot for New York magazine where she played the role of Marilyn Monroe.

According to the New York Post, the offer was worth $700,000 and asked for her to pose topless for an eight page spread on Playboy’s 55th-anniversary issue in January.

Lindsay recently dedicated a song to her “friend” Samantha Ronson when in a “smitten” mood on a blog within her MySpace page.

“This song is for S.R… ILY,” she wrote in her blog.

It is rumoured ILY stands for “I love you”.

Lyrics in the song, called Trouble by Ray LaMontagne, talk about the love a person has for a woman who saved them.

“Well I’ve been saved by a woman, I’ve been saved by a woman…She good to me now, she gave me love and affection, I said I love her.”

Samantha Ronson, along with her rumored girlfriend, Lindsay Lohan, snubbed her own birthday celebrations on Tuesday night. The two reportedly abandoned the party to avoid photographers.

Ronson and her twin sister, Charlotte, threw a double celebration at the Bowery Hotel in Los Angeles in honor of their 31st birthdays.

But Ronson and Lohan were said to have left the party early after a swarm of photographers arrived outside.

A source tells New York Post gossip column Page Six, “Charlotte and Sam do this party every year with (publicist) Amanda Silverman.

“The photographers must have caught on because they were outside the hotel. Sam and Lindsay were livid and just left to go do their own thing.”