Movie stars Jessica Alba and Topher Grace have landed new roles as godparents to Jaime King's son.

The Hart of Dixie actress gave birth to James Knight in October (13) and the stars gathered on Thursday (20Feb14) to celebrate at a special blessing ceremony held in his honour.

King shared the news with fans by publishing an picture of herself posing with her husband Kyle Newman, as well as Spider-Man 3 star Grace and Alba, who was holding her four-month-old godson.

In the accompanying caption, the new mum added, "Life is a constant gift. Our baby blessing this evening for our son James Knight Newman with our beloved godparents Topher Grace and Jessica Alba with daddy Kyle Newman - we love you!"