Billie Eilish's brother trolled about his girlfriend's supposed likeness to his sister

Billie Eilish's brother and bandmate has found himself at the center of a very awkward Instagram trend that sees fans calling out the similarities between his chart-topping sister and his girlfriend. Finneas O'Connell, 21, has been dating Los Angeles-based YouTube star Claudia Sulewski, 23, for over a year, however after posting a rare picture of his girlfriend and his sister together recently, fans have started bombarding the comments section to insist that Claudia is Billie's doppelganger. Similarities: Social media star Claudia Sulewski, 23, is being increasingly compared to her boyfriend's sister Billie Eilish Brunette: Fans of Billie Eilish take to the Internet to declare likeness between the singer, pictured, and her brother's girlfriend Claudia Sulewski 'Twins': Brunettes Billie, pictured left, and Claudia, pictured right, are being hounded by comments online insisting they look alike Viral: A tweet comparing Finneas O'Connell's girlfriend Claudia, pictured left, to his sister Billie Eilish garnered over 230,000 likes Any uploads posted by musician Finneas posing with his girlfriend now garner an onslaught of suggestive comments. Strike a pose: Fans continue to point out similarities between fashion-forward Billie, pictured left, and Claudia 'Family sitcom': The onset of comments began after Finneas and Claudia both posted this photo with girlfriend Claudia and 'Bad Guy' singer Billie Doppelgangers: Commentors can't stop drawing comparisons between Billie, pictured left, and Claudia, pictured right Love birds: Inseparable pair Finneas and Claudia have been dating for a year and a half Viral: Tweets and comments drawing parallels between Billie, pictured left, and Claudia, pictured right, are making waves online 'Billie and Claudia literally look like biological twins forrrealll,' reads one comment which has racked up over 3,000 likes. Twitter storm: Chart-topper Billie, pictured left, and YouTuber Claudia, pictured right, found themselves at the center of an invasive conversation about their similar features 'WTF': Twitter users claim they can't 'unsee' the likeness between Claudia, 23, and Billie, 17, Intrusive: Fans of Billie continue to troll her brother Finneas' Instagram account with comments about his girlfriend Claudia, pictured, and her similarity to Billie Comparisons: Social media users continue to weigh in on the perceived likeness of brunettes Claudia, pictured left with boyfriend Finneas, and Billie On images of Claudia dressed in oversized clothes, which Billie has a penchant for, commentors accused Claudia of mimicking the singer's style.