Camila Cabello and Benny Blanco create charity song

Camila Cabello and Benny Blanco teamed up with children from an arts charity to create a song without using traditional instruments.

The Fifth Harmony star took time out of her busy schedule on 29 May (16) to spend the day with the musician/producer at a studio in New York City with members of the non-profit arts organization OMG Everywhere.

The group had to make a song within the space of a day without the use of regular instruments, and a video showing their music-making efforts has been released.

The footage shows the group recording the sounds made from everyday items such as cups, straws, and bags of food, before Benny mixes them into a backing track. Camila helps the children write the song, titled Power in Me, about their dreams and aspirations, and sings the chorus.

"I haven't had this much fun in such a long time," she tells the group. "We cried and we laughed and I thought that was beautiful."

Camila also took to Twitter to promote the organization and their project, writing, "WE MADE A SONG OUT OF BANGING ON WATER GALLONS AND SQUEAKY FLOORS!!... best day ever. thank u to all the dope kids. @omgeverywhere @getwellsoontour."

The 19-year-old has recorded material without her girl group before - she sung with Shawn Mendes on I Know What You Did Last Summer last year (15). The pair have been romantically linked since, but Camila has insisted they're not an item.

"Shawn and I are great friends," Camila previously told Seventeen magazine. "That’s why we write so well together - we have fun!"

Fifth Harmony are set to embark on their headline tour next month (Jul16) and will perform in the U.K. and Ireland in October (16), starting with Dublin, Ireland on 4 October (16).