Toddler Aaradhya Bachchan made her mom and actress Aishwarya Rai's 40th birthday special when she sang "Happy Birthday" to her Friday.

"Aaradhya sleeps very late, so in the midnight she sang Happy Birthday to me. It's a very special experience. She did the same last month for paa (Amitabh Bachchan) also," Aishwarya told journos at her residence Janak while celebrating her birthday with them.

"She first wished herself and then she wished me," added the actress who is married to actor Abhishek Bachchan.

Any special gift from Abhishek?

"We will leave it to Abhishek to share it with you. He has given me a gift, but the biggest gift he has given me is Aaradhya. She is my biggest gift," said the former beauty queen known for her work in films like "Chokher Bali", "Hum Dil De Chuke Sanam" and "Devdas".