Kevin Zansler / The Times-Picayune. Pete Fountain "toots" at the opening of the reborn Blue Room on Friday, July 31, 2009. Water glasses reflected blue stage lights.

Blue Ivy Carter joined her superstar mother, Beyoncé, on stage as the Cowboy Carter Tour kicked off in Los Angeles last night.

Learn about the spectrum of colours found in visible light, how to split white light and the primary and secondary colours of light in this guide for KS3 physics students aged 11-14 from BBC Bitesize.

The intense red stage lights shifted to blue for a calmer atmosphere. The crowd fell quiet as she sang and hit the notes flawlessly, similar to the studio version. After the first ballad of the night, ...