LOS ANGELES: Daniel Radcliffe raps the alphabet. Mariah Carey sings karaoke to her own hits. Celebrities read out nasty tweets about themselves. In the race to go viral online, US television late night hosts are bringing out the big guns.
Wedged between YouTube celebrities, Vine stars and an Internet full of cat videos, the hosts of late night talk shows are putting a larger focus on becoming online sensations, creating meme-friendly content to draw an audience well beyond their tiny midnight viewership.