In the page's words:

The Helping Hands Allstars concert

Over 50 musicians come together to play for a good cause:
more than 30 cover songs from the history of music
Pop, rock, hip-hop or metal - no genre boundaries are known!

As every year, the profits will be donated to the Sea-Watch organization, which provides sea rescue and humanitarian first aid for refugees, especially in the Mediterranean(https://sea-watch.org).

You can find videos from previous years on YouTube.