Steven Tyler from Aerosmith was kind enough to sing ‘Happy Birthday’ for a little girl on Southwest Airlines. Really that was probably more for the parents, as the girl looks young enough to have been born just before Aerosmith’s last album was released (2012.) Steven Tyler is an eccentric guy. Anyone who saw him on American Idol knows that. Regardless of the fact he comes across as a little weird, it was a great thing for him to sing for a stranger’s big day.