Lauren Conrad is engaged to her boyfriend, William Tell! The former Hills star shared the news on her personal blog writing, "I am very excited to share with you guys that William and I got engaged over the weekend. I am beyond thrilled. Get ready for lots more wedding content on LaurenConrad.com as we begin the planning process." The stunning blonde and trendsetter also made sure to share a pic of her gorgeous new bling. Lauren and William, a 33-year-old rocker turned law student first started dating on Valentine's Day of 2012.