On March 13, Einziger tweeted a photo of himself with girlfriend, Ann Marie Simpson, and Eddie Vedder as seen below.
In the studio with my girl and Eddie Vedder, recording strings for Pearl Jam's new album http://t.co/wnHpWNqUG0—
Michael Einziger (@MichaelEinziger) March 20, 2013
According to a tweet posted today by Einziger, it was in fact Simpson, an accomplished violinist, who was the one performing in studio with Pearl Jam. Einziger was merely in studio visiting. And, frankly, who wouldn’t hang out with Pearl Jam if given the opportunity?