Victoria Beckham just gave an interview to Vogue magazine and said that as a gift for her son Romeo’s birthday, Justin gave him a personally autographed guitar but unfortunately JB signed it to “Pax” which is the son of Angelina Jolie and Brad Pitt.
“For Romeo’s birthday, as a surprise, the family took him to hang out in Justin Bieber’s studio while he was recording his Christmas album. Bieber sweetly sent the boys signed guitars afterward, but Romeo’s was signed to ‘Pax’ (of the Jolie-Pitt clan). So we got one of the Jolie-Pitts’ guitars,”
Weird because I checked the post and it looks like it was signed to Romeo (the one of the right):