Akshay Kumar showered his love for his wife Twinkle Khanna by tweeting a beautiful message on her birthday. "There's really no contest when it comes to the best thing in my life. It’s you! You are the reason why I smile during good times. But more importantly you are the reason why I smile even during bad times. Happy birthday Tina! And guys thank you for all your sweet wishes for my wife, shall pass them onto her :)", he tweeted.