Alfonso Ribiero to Step In for Tom Bergeron on Tonight's DANCING WITH THE STARS

DANCING WITH THE STARS host Tom Bergeron took to Twitter yesterday to announce that he will miss tonight's episode of the ABC dance competition in order to be at his ailing father's bedside.

The Emmy-winning host captioned a black and white photo of himself and his father: "I'll miss 2morrow's #dwts to be at my Dad's bedside. He's given me a lifetime of support. Time to return the favor"

Sources have confirmed to PEOPLE that Alfonso Ribeiro, the Season 19 champ of the long-running show, will step in as co-host, alongside Erin Andrews. Ribeiro appeared as a guest judge on last Monday's show.

Bergeron served as host of America's Funniest Home Videos. His other hosting credits include PBS' A Capitol Fourth, The 60th Annual Primetime Emmy Awards, the Miss America Pageant, The 33rd Annual Daytime Emmy Awards and the Academy of Television Arts & Sciences Foundation's 28th College Television Awards Gala, among other specials.

Photo courtesy of ABC