Ariana Grande among celebrities in Paris at Olympics opening ceremony

US singers Ariana Grande and Pharrell Williams are among the stars who have arrived in Paris where the Olympics opening ceremony is taking place.

The event is being held in the heart of the city, along its main artery, the Seine, and pop singer Lady Gaga has been photographed rehearsing beside the river for a performance on Friday evening.

Appearing at a red carpet event at the Trocadero, Williams (51) wore a Louis Vuitton jumper paired with black shorts and a beige cap.

Meanwhile Yes, And? singer Grande (31) opted to wear a light pink dress adorned with a bow and white gloves.

Standing alongside her was her Wicked co-star Cynthia Erivo who plays Elphaba in the forthcoming musical movie in which Grande stars as Glinda.

The London-born actress (37) wore an emerald green strapless dress with a hat, gold jewellery and matching green nails.

Photos from rehearsals show Paparazzi singer Lady Gaga performing in black gloves with round pink props.

She is reportedly set to perform a version of Edith Piaf’s La Vie en Rose alongside Celine Dion as part of a glittering conclusion to the first ever opening ceremony being staged outside a stadium.

Among the other stars pictured in front of the Eiffel Tower was The Vampire Diaries actress Nina Dobrev.

The 35-year-old opted to wear a black and red leather jacket, black handbag and white shorts.

Braving the rain on Friday afternoon was editor-in-chief of American Vogue Anna Wintour and film director Baz Luhrmann.

While Wintour wore a blue vertically striped dressed with ballon sleeves, the Elvis director sported a cream-coloured ensemble with a cap.

Musician John Legend also appeared at the event, alongside his wife and TV presenter Chrissy Teigen.

Legend, who sang a version of John