Justin Timberlake appeared to take a dig at Britney Spears during his birthday concert. The former *NSYNC member, 42, made headlines in 2023 after his ex-girlfriend Britney, also 42, revealed in her ‘The Woman In Me’ memoir she had an abortion while they were dating as he “didn’t want to be a father” and “wasn’t happy” she was expecting. He told fans at his ‘One Night Only’ gig at Irving Plaza in New York City on Wednesday (31.01.24), held on his 42nd birthday: “I’d like to take this opportunity to apologise to absolutely nobody.” Justin then launched into a version of his 2002 hit ‘Cry Me a R…