Rihanna lounges around a pool in a string bikini as she takes time out in Tel Aviv ~ Beauty Care

Rihanna lounges around a pool in a string bikini as she takes time out in Tel Aviv

Rihanna spent yesterday touring around the holy city of Jerusalem in a very modest outfit indeed.

But less than 24 hours later, the pop star promptly let her guard down after arriving in Tel Aviv.

The Rated R singer was spotted sunning herself by her hotel pool in Israel today in a string bikini.

The 22-year-old attracted more than a few admiring glances as she cooled off in the water with fellow hotel guests.

Sun lover: Rihanna basked in the heat as she relaxed by her hotel pool in Tel Aviv, Israel

Cooling off: The singer, who was wearing a string bikini, enjoyed a quick swim

Later, she changed into khaki and a sheer top that exposed her midriff as she headed off to do some volunteer work at a local community centre.

She is in the city for the next leg of her Last Girl On Earth world tour, and is set to perform on Sunday night.

Yesterday Rihanna took a whirlwind tour of Jerusalem, covering up in a demure maxi dress and sarong, with barely a scrap of flesh showing.

The singer chose the brightly coloured outfit for a day touring some of most holy sites.

Time out: Rihanna enjoyed a relaxing day ahead of her performance in the city on Sunday night

These included The Church Of The Holy Sepulchre, said to be the site of Jesus Christ's tomb, and the Western Wall, one of the Jewish faith's most religious sites.

She also fitted in a spot of shopping at the Egyptian market.

Meanwhile, the web is buzzing with talk of her latest music video for Te Amo.

The daring scenes portray the heterosexual Barbadian singer as a leather clad dominatrix, kissing and striking suggestive poses with dark-haired French supermodel Laeticia Casta.

The explicit video, leaked onto the web, even shows Rihanna as a dominatrix in sado-masochistic bondage scenes.

Costume change: After her day by the pool, Rihanna headed off to help out with some artwork at a Scouts centre in a midriff-baring top

She mounts the tied up Laeticia from behind, forcing her head down towards the bed.

She also crawls on top of her co-star as the pair, wearing matching PVC underwear, lie on a table.

Mother-of-three Laeticia, 32, is no stranger to controversial music videos - she starred in Chris Isaak's Baby Did A Bad, Bad Thing in 1999, which VH1 refused to air before the watershed.

The new video is set in the manicured grounds of the romantic 15th century Château de Vigny, just outside Paris.

Rihanna

Pilgrimage: Rihanna spent yesterday visiting Jerusalem's holy sites

So demure: The singer covered up in a maxi dress and sarong, with barely a scrap of flesh showing

It was directed by Anthony Mandler, whose casting call asked for 'beautiful, sexy and glamorous' females who are 'comfortable in their bodies'.

Mandler has directed videos for some of the world's biggest pop stars including Usher, Nelly Furtado, Eminem and Enrique Iglesias and Te Amo is the 11th time he has worked with Rihanna.

Writing on his Twitter page, Mandler enthused: 'Thanks to all of Rihanna’s fans for the long list of suggestions... we're gonna follow our instincts and give you guys something special...'

The isn't the first time Grammy winner Rihanna has pushed the boundaries with her videos. Her upcoming Rockstar 101 video shows her naked but for a few strategically placed chains.