Jessica Simpson's son Ace celebrated his second birthday on Tuesday, and the singer has posted some cute pictures of the occasion to her Instagram. Simpson, 34, and husband Eric Johnson went all out for the toddlers second birthday and even rented a bouncy slide, according to People.

Ace was all smiles on his special day, wearing a Hawaiian-print shirt and matching Hawaiian-print shorts. Simpson and Johnson will soon celebrate their first wedding with help from the two-year-old and his older sister, Maxwell, who turned three in May. The couple only got married last year but has been together since 2010 after Simpson's relationships with Nick Lachey, John Mayer, and Tony Romo.

Simpson cannot believe how fast her little kids are growing up, captioning one picture, "2yrs OLD?!?! Can we live here forever?" Simpson was last seen on TV as a judge on the reality show Fashion Star and announced in March that she had begun working on her eighth studio album, according to the Daily Mail.