AirAsia boss Tony Fernandes on cloud nine at daughter Steph's graduation

AirAsia boss Tony Fernandes may have a lot on his mind. But last week he cast aside business in favour of his daughter, Stephanie " Steph" Fernandes, and played the proud father instead.

Fernandes was in the UK to attend his 22-year old's graduation ceremony at Durham University.

He shared images from the ceremony on Instagram, calling it one of the best days of his life:

Great day for me. My baby girl has graduated from Durham University. Not often moved to tears. Was… https://t.co/9oND8Xy8Ya

— Tony Fernandes (@tonyfernandes) June 25, 2015

Probably one of my best days of my life . I have a pretty dam cool daughter. Durham cathedral pretty… https://t.co/HFE9GQNBal

— Tony Fernandes (@tonyfernandes) June 25, 2015

Stephanie, who studied marketing at Durham, is passionate about music. On her website she says, "I feel music is integrated into our everyday lives." Even her final college dissertation had a musical touch and covered online music streaming services.