Bundaberg schoolboy Elijah Richardson, nine, reached out to Billie Eilish to use her song Ocean Eyes for a campaign by environmental group CoralWatch.

Eventually, Billie gave permission for the song to be used and CoralWatch is now looking to recruit Robert De Niro and Kit Harrington to the cause.

More recently, Elijah received a letter from his idol Sir David Attenborough, who wished him well on a trip to Heron Island.

Elijah is CoralWatch's youngest ambassador and visited Heron Island as part of the program.