Appearances by Elton John and Kelly Clarkson helped Los Angeles TV station KTLA raise more than $700,000 (£567,700) for Covid-19 relief.Kelly, Josh Groban, Annie Lennox, CeeLo Green and others were among the stars who sang during KTLA's Lead with Love: Project Angel Food Emergency Telethon telethon on Saturday, for the city's Project Angel Food charity.