People reports that Nick Lachey has proposed to Vanessa Minnillo in California. “We’re excited and incredibly happy about our engagement and we look forward to a wonderful future together,” the pair said in a joint statement. Lachey and Minnillo have been dating since 2006, though they briefly split in 2009. This will be Lachey’s second marriage; the 98 Degrees singer was previously married to Jessica Simpson.