Timberlake And Jessica Biel Are Finally Engaged" . B96 Chicago. January 4, 2012 . http://b96.radio.com/2012/01/04/its-official-justin-timberlake-and-jessica-biel-are-finally-engaged/ .   ^ "Justin Timberlake and Jessica Biel Engaged" . People . January 5, 2012 . http://www.people.com/people/article/0,,20558288,00.html . Retrieved January 9, 2012 .   ^ "Justin Timberlake's Grandma: Yes, He's Engaged to Jessica Biel!" .