Commending their friends and family for not leaking it to the gossip pages, Nicole Richie and Joel Madden announced that after three years together and two kids, they are engaged. “P.s. thats why i love my family and friends,” Madden, lead singer for the band Good Charlotte, posted on Twitter. “None of them are sources. All good tight lipped people who let us enjoy it!” Richie, 28, and Madden, 30, have been together since December of 2006. They have a two-year old daughter, Harlow, and a five-month-old son, Sparrow.