A friend told US Weekly that Michael is 'ready to get back to work,' and his wife - Argentinian actress Luisana Lopilato - is also getting back to her work.
'This difficult time has brought them closer together and put things into perspective,' says a friend. 'Michael is keeping his workload light so he can spend as much time as possible with Noah and Elias.'
'Last Christmas was tough,' the source says. 'They couldn't ask for a better present than Noah being well.'
The last update the crooner gave us of his little Noah was back in February.
Bublé released a statement that read, 'We are so grateful to report that our son Noah has been progressing well during his treatment and the doctors are very optimistic about the future for our little boy.
'He has been brave throughout and we continue to be inspired by his courage.'
Bublé and his wife Luisiana have been dating since 2008, and have been married since 2011.
The couple share two children - four-year-old Noah, and 23-month-old Elias.
So glad to see the family recovering well before the holidays!