Paul McCartney recently paid tribute to late Beatles photographer Astrid Kirchherr in a series of emotional posts on Twitter.

Kirchherr, who passed away on May 12 at the age of 81, was a “dear friend,” the music icon said in a tweet as he reflected on his days in the clubs in Hamburg.

“Astrid looked unique. She had a short blond haircut and wore a slim black, leather outfit which made her look like a funky pixie,” McCartney said.

He added, “She would come to the club with Klaus [Voormann] and another friend, Jürgen Vollmer, and the three of them made quite an impression on us four lads from Liverpool.”

McCartney said the Beatles “fell in love with Astrid’s style” and praised the “beautiful photographs” she took of the band in their early days.

“I have so many fond memories of our time together in the club or her home or a trip to the nearby seaside resort, Lübeck,” McCartney said.

“So sad for all of us who were her friends to lose such a lovely lady from our lives,” he added. “I will miss her but will always remember her and her cheeky grin with great fondness. God bless you Astrid, see ya love!”