Demi Lovato recently highlighted her hair.

Lovato, who began her acting career at the age of seven on the children’s television series Barney & Friends as Angela, may be changing her hairstyle.

Demi recently tweeted, “Fixed some highlights + added more  I’ll add pics soon! I have blonde in my hair!!! Ahhhhh!!!!!”

Earlier Lovato confirmed via her Twitter page that she and Jonas were no longer together.

In April the Jonas Brothers announced their World Tour 2010 featuring Lovato as a special guest.

Lovato is best known for her roles as Mitchie Torres in the Disney Channel Original Movie, Camp Rock and its upcoming sequel, Camp Rock 2: The Final Jam, and as Sonny Munroe in Sonny With a Chance.

Kevin Jonas is getting married this weekend.

The Jonas Brothers singer – who got engaged to girlfriend Danielle Deleasa in July – is set to marry his fiancee on Saturday (19.12.09) in front of family and friends at an estate in Long Island, New York.

The 22-year-old musician is reportedly taking part in a wedding rehearsal today (18.12.09) which features a roller skating rink.

Kevin, the eldest of the pop siblings, met his fiancee in the Bahamas in 2007 and proposed to former hairdresser Danielle, 22, by turning up at her New Jersey doorstep last June with a ring, breaking teen girls’ hearts worldwide.

Danielle is said to be walking up the aisle in a strapless Vera Wang gown and a headpiece by designer Denise Leli.

A source said: “Danielle has gone for a romantic dress and an intricate headpiece with floral details, because when she met Kevin on the beach she was wearing a flower in her hair.”

Demi Lovato, who starred with The Jonas Brothers in ‘Camp Rock’, is one of the celebrity guests expected to attend the ceremony.

Kevin previously revealed both of his brothers, Joe, 20, and Nick, 17, will serve as best men.

He said: “Danielle has an older and a younger sister, so it works out really well. I can have two best men, and she can have two maids of honour.”

Source: BANG Showbiz