India, Feb. 15 -- Former Eagles guitarist Don Felder was forced to stop performing on Thursday when he suffered an unprecedented onstage medical emergency on the Rock Legends Cruise. The 77-year-old Rock and Roll Hall of Fame inductee's management team has since revealed what led to the mid-performance health scare as he abruptly stopped strumming the guitar and stared into the distance.

Visibly shaking, he tried to catch hold of the standing mic but ultimately had to be rushed for treatment. A YouTube video clip shows Felder ready to perform the track "Tequila Sunrise" when he appeared unsteady. As a crew member escorted him offstage, the crowd roared in support of the musician. "We love you, Don," someone cheered him on, as others join...