X Factor star Sam, who gave birth to Miley on 10 September with husband Craig Pearson, uploaded a series of snaps of her newborn sporting the biggest grin ever.
Captioning the close-up photos, Sam simply said: "#smileymiley."
Miley is so cute and we reckon these pics should definitely be in the family photo album!
Miley's godmother is Sam's former X Factor mentor Sharon Osbourne, and earlier this month, Sharon met Miley for the first time. Reuniting on ITV's Loose Women, Sharon cradled and cooed over her goddaughter backstage.
Miley is Sam and Craig's third child together. The couple are also proud parents to son Tommy and daughter Brooke.
At the beginning of this month, Sam revealed she was suffering from Bell's Palsy, which is paralysis of the muscles in one side of the face.
During a TV interview on BBC Breakfast, 'Skyscraper' singer Sam said she isn't going to let the illness stop her from working.
Just a few weeks ago, Sam released her first ever autobiography Daring to Dream, which documents her days as a prison officer, to starring on The X Factor, winning the show and releasing her debut album.
Sam is actually preparing to reissue her chart-topping debut album, The Power Of Love, with five new songs just in time for Christmas.
The updated album will hit stores on 1 December.
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More stars who have given birth this year:
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