Los Angeles, Oct 20 : Singer-actor Justin Timberlake says TV presenter Susanna Reid, who plays his character s grandmother in the upcoming film "Trolls", is way too young and super-hot to play an old woman.In "Trolls", Timberlake is voicing the character of Branch. "Good morning Britain! Susanna look you are here with us! You play my grandmother in Trolls . You look way too young ... I have a super-hot grandmother," Timberlake said in a video on the TV show "Good Morning Britain", which is co-presented by Reid.Timberlake s co-star Anna Kendrick agreed with him and said: "Your grandma s a babe."