Woodstock veteran Arlo Guthrie plays a song at the original site of the 1969 Woodstock Music and Arts Fair in Bethel, NY, Thursday, Aug 15, 2019. (AP Photo/Seth Wenig)
Woodstock veteran Arlo Guthrie plays a song at the original site of the 1969 Woodstock Music and Arts Fair in Bethel, NY, Thursday, Aug 15, 2019. (AP Photo/Seth Wenig)Arlo Guthrie waves to the crowd during a concert at a Woodstock 50th anniversary event in Bethel, NY, Thursday, Aug 15, 2019. (AP Photo/Seth Wenig)Arlo Guthrie talks during a concert at a Woodstock 50th anniversary event in Bethel, NY, Thursday, Aug 15, 2019. (AP Photo/Seth Wenig)People enjoy a concert by Arlo Guthrie at a Woodstock 50th anniversary event in Bethel, NY, Thursday, Aug 15, 2019. (AP Photo/Seth Wenig)Woodstock veteran Arlo Guthrie reacts after playing a song at the original site of the 1969 Woodstock Music and Arts Fair in Bethel, NY. (AP Photo/Seth Wenig)Members of the media record as Woodstock veteran Arlo Guthrie plays a song at the original site of the 1969 Woodstock Music and Arts Fair in Bethel, NY. (AP Photo/Seth Wenig)Woodstock veterans Roger Dennis, Duke Devlin and Joe Klimasiewfski pose for a picture at the original site of the 1969 Woodstock Music and Arts Fair in Bethel, NY. (AP Photo/Seth Wenig)Mary and Aaron Walkover from Florida talk with a man who calls himself 'Run-A-Way Bill' from Virginia, waiting for the gates to open at a Woodstock event in Bethel, NY. (AP Photo/Seth Wenig)A man who calls himself 'Run-A-Way Bill' stands in front of a Volkswagen bus while waiting for the gates to open at a Woodstock 50th anniversary event in Bethel, NY. (AP Photo/Seth Wenig)The Lescinski sisters, Kristi, 19, Jaime, 17 and Emily, 13, sing together in the parking lot waiting for the gates to open at a Woodstock 50th anniversary event. (AP Photo/Seth Wenig)People walk and lie on the site of the original 1969 Woodstock Music and Arts Fair while waiting for the start of a 50th anniversary event nearby in Bethel, NY. (AP Photo/Seth Wenig)Al Westphal sings and plays his guitar in the parking lot while while waiting for the gates to open at a Woodstock 50th anniversary event in Bethel, NY. (AP Photo/Seth Wenig)Officials direct light traffic at the entrance to Bethel Woods, the site of a Woodstock 50th anniversary event, in Bethel, NY, Thursday, Aug 15, 2019. (AP Photo/Seth Wenig)People listen and dance as Arlo Guthrie plays at a Woodstock 50th anniversary event in Bethel, NY, Aug 15, 2019. (AP Photo/Seth Wenig)People listen and dance as Arlo Guthrie plays at a Woodstock 50th anniversary event in Bethel, NY, Thursday, Aug 15, 2019. (AP Photo/Seth Wenig)People hold hands in a circle around a large, illuminated peace sign on the original site of the 1969 Woodstock Music and Arts Fair in Bethel, NY, Thursday, Aug 15, 2019. (AP Photo/Seth Wenig)People hold hands in a circle around a large, illuminated peace sign on the original site of the 1969 Woodstock Music and Arts Fair in Bethel, NY, Thursday, Aug 15, 2019. (AP Photo/Seth Wenig)People gather around a large, illuminated peace sign on the original site of the 1969 Woodstock Music and Arts Fair in Bethel, NY, Thursday, Aug 15, 2019. (AP Photo/Seth Wenig)People look at a large illuminated '50' on the grass of the original site of the 1969 Woodstock Music and Arts Fair in Bethel, NY, Thursday, Aug 15, 2019. (AP Photo/Seth Wenig)