Justin Timberlake and Jessica Biel plan lavish wedding

London: Actor-singer Justin Timberlake and actress Jessica Biel, who had a low-profile engagement, are expected to get married in a lavish ceremony soon.

"Justin and Jessica are planning a big summer wedding," a source close to the couple told people.com.

"Jessica initially wanted a smaller, more intimate wedding, but Justin from the beginning wanted a big wedding and that`s what they have decided on."

Biel is yet to decide on her dress, the source said, but added that the actress is very involved with the planning of her wedding ceremony.

As for the groom, the source said: "Justin has promised her the best day ever."