Justin Timberlake and Jessica Biel were side by side to run errands in LA this afternoon. Justin was sporting a bushy beard and a green hat while Jessica wore sunglasses and kept her left hand in her pocket during the outing. The couple reportedly became engaged over the holidays, though neither party has confirmed the news. We haven't seen a glimpse of Jessica's engagement ring either, despite multiple public appearances. Jessica hit the red carpet for the Golden Globes and posed for photographers at a W Magazine party, but she kept her ring finger bare at both events. Justin, meanwhile, attended last month's annual CES convention in Las Vegas, where he announced his new MySpace TV venture. He also recently celebrated his 31st birthday, which he apparently marked with a ski vacation in Canada.