Hostelworld, Giffgaff, Apple: The top 10 YouTube ads in April

1. Hostelworld: Even divas are believers… Mariah Carey stays in a hostel
Hostelworld enlisted the help of legendary diva Mariah Carey for this ad, which aims to talk up the level of service people can expect. In the ad, Carey’s assistant accidentally books a hostel, and while at first she is angry she soon comes around and by the end is giving an impromptu performance in the hostel’s bar. No one really believes Carey is about to give up her lavish lifestyle to stay in a hostel