Singer Britney Spears arrives with an unidentified woman at Barrigona beach on the Pacific coast in Samara, Guanacaste, 480 km (300 miles) north of San Jose, May 17, 2008. Picture taken May 17, 2008. [Agencies]

Britney Spears is to make an appearance in the new Pussycat Dolls video. The troubled singer was spotted in Burbank, California, yesterday (04.06.08) meeting up with the girl group, who are shooting the promo for 'When I Grow Up' there.

An insider said: "She is doing a cameo in their new video shoot today." Britney once appeared with the Pussycat Dolls as part of a special performance for her older brother Bryan's birthday. The video is the latest venture for Britney, 26, who has been trying to get her life back on track since her breakdown in January. It was revealed last week that she is in talks to star in and produce a new TV show, following her successful cameo appearance on comedy show 'How I Met Your Mother'.

A source said: "Britney met with Roy Bank, the president of Merv Griffin Entertainment. It was a serious meeting and they spoke about various programme ideas - including a new music show." The 'Gimme More' star has also reportedly been approached about taking on the role of Sandy in a Broadway revival of hit musical 'Grease'.