Pedro O’Hara’s weekend entertainment includes, Mike Rodrigue, left, who has been entertaining crowds for nearly 25 years with his eclectic mix of melodies from the ’60s into the 2000s, on Friday, May 11, from 8 to 11 p.m. On Saturday from 8 to ll p.m., Zack Mullen, right, a 20-year-old guitarist and singer from Bowdoinham, who has been playing guitar since he was 9, will perform. No cover charge.