Selena Gomez and Justin Bieber Cute Couple PDA and Pictures

Selena Gomez turned 20 yesterday! She'll officially say goodbye to her teen years with an appearance at today's Teen Choice Awards in LA. Selena is nominated for three TCAs, including choice female hottie, choice music group for Selena Gomez and the Scene, and choice single for her song "Hit the Lights." Her boyfriend, Justin Bieber, may have shown her up with a whopping eight nominations, but the couple seem more in love than ever. Justin and Selena vacationed in Australia and New Zealand last week, putting recent breakup rumours to rest. In honour of Selena's milestone birthday, click through to see her and Justin's sweetest moments together!

Additional reporting by Meghan Rooney