The 'Sopranos' star, who has been candid about her own battle with MS, spoke with ET at this year's Race to Erase MS Gala.
ET spoke with Sigler at the 26th Annual Race to Erase MS Gala on Friday.
The actor also sent Mother's Day wishes to his own mom, Christine Anne Boldt.
The pair's new addition comes a year after they welcomed twin boys.
The movie star surprised his former classmates at their 20-year reunion.
The 'Wheel of Fortune' hostess is hopeful her longtime friend will beat the disease.
ET spoke with the 'Wheel of Fortune' star at the 26th Annual Race to Erase MS Gala on Friday.
The beauty expert is facing a serious problem on YouTube.
The world-famous couple are overjoyed following their newborn's arrival!
Take a look at the son of of the iconic singer in his cap and gown!
Take a peek at the new sweet image of the royal baby!
See which A-listers are enjoying the holiday in a whole new way!
The wedding came one week after the Duchess of Sussex welcomed her first child with Prince Harry.
Lipton's daughters, Kidada and Rashida Jones, confirmed their mother's passing to ET on Saturday.
