He said of Esposito: "She's a friend and I hope she's doing good. I love working with her, so we'll see what happens."
Wahlberg hopes Jennifer Esposito is 'doing good' →
"You have three acts that have lots of records, lots of fans," he said. "Fans that are anxious to sing those records and anxious to sing other bands' records, too."
Walhberg: Boy band union is strong for summer tour →