Timberlake proposed to girlfriend Jessica Biel late last year. The celebrity couple have been dating since 2007.
Bass, a former member of 'NSync along with Timberlake, insisted that he has the perfect wedding gift for the couple, Digitalspy writes.
"The man has everything, so a nice little toaster will do - maybe the one that puts a little Mickey Mouse emblem on it!" Bass told Us Weekly.
Bass went on to say that he is thrilled Timberlake is marrying Biel, claiming that she's "always been one of the guys".
"Jessica's amazing. One of the best people I know," he added. "She's like a best friend. It's like hanging out with a best friend."
Timberlake and Biel celebrated their engagement with a cocktail party on last weekend.
Tagged in Jessica Biel Justin Timberlake Lance Bass