Neil Patrick Harris yells at fan mid-performance

'How I Met Your Mother' star Neil Patrick Harris yelled at a fan, who disrupted his Broadway show 'Hedwig and the Angry Inch'.

The 40-year-old actor was angry when a besotted fan proclaimed her love for Harris, while he was on stage, reported New York Post online.

Mid-performance, the female fan yelled out, "I love you, Neil!"

Harris, who plays a transgender East German punk, yelled back, without missing a beat, in character, "I am doing something up here."

The actor's quick reaction was met with rapturous applause.