Unions are hoping to revive more opposition to the controversial reforms.
Saturday's concert comes after six weeks of labour strikes and nationwide protests against government plans to overhaul France's pension system.
They say certain fishing methods are seeing the dolphins accidentally killed.
The body of the stowaway was found after the plane - coming from the Ivory Coast - had landed in Paris.
France commemorated on Tuesday the cartoonists who were massacred by two gunmen at the Charlie Hebdo satirical magazine in Paris five years ago.
He had received care in a mental health facility until last May. But prosecutors are not ruling out it was a terrorist act.
Anna Karina, the epitome of French New Wave cinema, has died of cancer at the age of 79. The French-Danish star was the former muse of film director Jean-Luc Godard
Nico Semsrott says he has found a loophole that will prevent MEPs having to move from Brussels to Strasbourg every month.
Rubbish bins and cars were set on fire as 'yellow vest' ('gilets jaunes') protesters hit the streets again to mark the movement's one-year anniversary.
Urban climber Alain Robert, also known as the "French Spider-Man", scaled a skyscraper in Paris on Wednesday.
Over 13,500 people marched in Paris on Sunday against Islamophobia, in a controversial protest that created tensions on the left and attracted criticism from the French government and right-wing parties.
French chocolate-maker Patrick Roger built a giant chocolate 'wall' in Paris to celebrate the 30th anniversary of the Berlin Wall's fall.
The window displays, which this year are dubbed "A very curious Christmas", feature animals in zany scenes.