Gavroche Thernadier
The song is Javert At The Barricade / Little People.
Inspector Javert (played by Russel Crowe), sings 'Stars.'
QUEEN sings their iconic 'Crazy Little Thing Called Love' in the commercial for Lay's that I have seen. See Link below:
David Bowie sings it. The song is called china girl.
Aaron Neville
The song is actually called "Little White Church", and it is a country song. The band that sings it is Little Big Town.
It's called Dixie chicken by Little Feat
Anne Jacqueline Hathaway (b. 12 Nov 1982) is an actress, singer and producer. She played the role of Fantine in the move Les Miserables, a role that her mother played during the US tour of Les Miserables. Both women sang the songs themselves.
Lindsey Haun sings Broken.
It is a Los Angeles band called The Little Ones.
Cosette sings "Castle on a Cloud" in the musical Les Miserables. The song is performed by young Cosette when she dreams of being in a better place than the one she currently lives in.
Those people are called buskers.