The World Superbike racer Carl Fogarty gave his support to the Midlands Air Ambulance Charity by taking part in the Bike4Life Ride Out and Festival. Fogarty was joined by the television presenter Richard Hammond in leading more than 5,000 bikers in a ride from Meole Brace in Shrewsbury to the RAF Museum Cosford, Shropshire. The ride out and festival raised more than £45,000 for the charity.
The Game of Thrones actor James Cosmo has joined up with Street Child Africa to cycle across Zambia in September. He will raise funds for the charity, which provides shelter, first aid, education and training to children living on the streets.
Celebrities including the actor Stanley Tucci, the writer and actor Ruth Jones and the TV chef Rachel Khoo are backing the Stroke Association's Action on Stroke Month, Make May Purple. Supporters are encouraged to carry out activities such as wearing purple clothes, growing purple plants and baking purple food, including Tucci's blueberry pie recipe.
The chefs Gordon Ramsay, Gino D'Acampo and the Hairy Bikers, and the actors Joanna Lumley and Victoria Wood, are among the celebrities who shared recipes of their favourite decadent treats – including blondies and lemon cake with Earl Grey icing – for the National Deaf Children's Society's Big Cake Bake in Deaf Awareness Week at the beginning of May.
The singer and TV presenter Olly Murs visited young cancer patients in the Teenage Cancer Trust unit at Freeman Hospital, Newcastle. He said: "It was inspiring to meet such incredible people, full of real positivity, in such a warm and welcoming environment."
The publisher Penguin Random House has joined with the Diana Award's anti-bullying campaign to launch Kindness Day with the backing of the children's laureate Malorie Blackman, the television presenter Helen Skelton, the businesswoman Kelly Hoppen and the singers Bars and Melody. Kindness Day, on 12 June, will encourage adults and children to celebrate kindness.
The ex-Pussycat Dolls singer Kimberly Wyatt is supporting Cruelty Free International's campaign for a global ban on animal tests for cosmetics. She said: "I am proud to join Cruelty Free International in urging governments around the world to end cosmetics testing on animals."
Favourite headwear donated by stars to an auction for Alzheimer's Research UK includes a signed helmet from the skateboarder Tony Hawk, a Philip Treacy-designed hat from the singer Boy George and a signed cocktail hat from the singer Paloma Faith. The charity's first-ever Hats Off To Research fundraising campaign ran online in May. Other celebrities also donated hats, including the comedian John Bishop, the dance troupe Diversity and the racing driver Mark Webber.
Pancreatic Cancer Action has announced the businessman and Countdown presenter Nick Hewer as its new patron. "I'm aware first-hand, through the loss of a family member and a number of close friends, of the devastating impact of a pancreatic cancer diagnosis, and I know that more needs to be done to improve survival rates for patients," he said.
Richard Farleigh, the investor and former Dragons' Den panellist, has become an ambassador for Action for Children. Farleigh was fostered as a child in his native Australia, and his support of the charity's work with vulnerable children and young people has been motivated by this.
The West Bromwich Albion footballer Saido Berahino has launched the Saido Berahino Foundation and become an official ambassador for WaterAid. Berahino, who fled his native Burundi aged 10 during the civil war, aims to provide funds for WaterAid's life-saving projects around the world that he hopes can be replicated in his native country.
The former Guns N' Roses guitarist Slash has released a song and video called Beneath The Savage Sun, in partnership with the International Fund for Animal Welfare, to raise awareness of the slaughter of elephants. He was prompted to act after touring in South Africa and learning more about the elephant crisis.
The comedians Jo Brand, Alan Davies, Tony Hawks and Robert Llewellyn were joined by the presenter Clare Balding and the lyricist Sir Tim Rice to raise funds for the Cure Parkinson's Trust at a Comedy Quiz Night held at ZSL London Zoo in April. More than 200 guests and supporters were entertained at the event.