Bipolar disorder is a mental health disorder that affects roughly six million Americans \u2014 or 3% of our population. Also known as manic-depressive disorder or manic depression, the condition is characterized by dramatic shifts in mood and energy, swinging from low\/depressive episodes to high\/manic ones \u2014 cycling episodes that for many bipolar sufferers are so debilitating they interfere with work and other activities. In an effort to destigmatize mental illness and raise public awareness and understanding, many news stories in recent years have tackled the topic of bipolar disorder. In fact, there are several bipolar celebrities who have discussed or sung about the condition, including a few popular musicians and singers who have been thrilling fans at concerts and Indie music festivals this year. Musicians Who Fearlessly Tackle Topics of Bipolar or Depression \u201cHelp me polarize, help me polarize,\u201d pleads Tyler Joseph in the song \u201cPolarize.\u201d Is the singer-songwriter of the Grammy Award-winning musical duo Twenty One Pilots singing about bipolar disorder? Joseph and bandmate Josh Dun have both publicly discussed their struggles with anxiety and depression. Though they haven\u2019t cited bipolar disorder by name, many of their most popular tunes \u2014 including the Billboard 100 hits \u201cStressed Out\u201d and \u201cHeathens\u201d (for the film \u201cSuicide Squad\u201d) \u2014 feature lyrics that have led many fans to wonder if bipolar disorder is an underlying issue. Halsey, an indie-pop singer-songwriter known for hit songs such as \u201cGhost,\u201d \u201cTrouble,\u201d \u201cGasoline,\u201d and \u201cNot Afraid Anymore\u201d (for the film \u201cFifty Shades Darker\u201d) often discusses her struggles with bipolar disorder in media interviews. Like Twenty One Pilots, with whom she is friendly, Halsey\u2019s music expresses dark thoughts and feelings of sadness. In a 2015 interview with Nylon magazine, Halsey opened up about how her bipolar disorder diagnosis at age 17 impacted her. "You wonder things like, \u2018Am I ever going to be able to be a mom?\u2019 ... Knowing that I couldn\u2019t do something because of this, even though it wasn\u2019t directly crippling me, was horrifying.\u201d Halsey has said that she is not her disorder, and that through her music she hopes to be honest with fans and, for those who also may suffer from the disorder, to lead them out of the darkness. During a highly publicized trip to rehab, singer Demi Lovato discovered that she has bipolar disorder. Though she had battled depression from a young age, which escalated into an eating disorder and self-harming, Lovato has said that she wasn\u2019t aware that bipolar was the underlying cause of these issues until she received clinical treatment in rehab. Thanks to proper treatment and therapy, she now works to \u201c\u2026 make the highs as amazing as possible, and \u2026 control how low the lows go." Lovato is not the only famous singer who suffered through years of depression before getting a diagnosis of bipolar. Irish singer Sinead O\u2019Connor, who achieved worldwide fame with her unique rebel-girl interpretation of Prince\u2019s song \u201cNothing Compares 2 U,\u201d had a similar experience. \u201cEvery pore of you is crying and you don\u2019t even understand why,\u201d O\u2019Connor has said of her experience before finding depression treatment. Singing sensation Lady Gaga, who recently performed for throngs of music fans at the Coachella Music Festival in Indio, California, has publicly discussed her issues with depression and anxiety, for which she takes medication. Miley Cyrus, another mega pop star, has spoken about her bouts of deep depression, saying that there is nothing worse than having all eyes on you and having to be \u201cfake happy.\u201d Alternative Rock Singers: Poster Children for Depression and Bipolar? Singers from a genre sometimes referred to as \u201cpop-punk,\u201d \u201calternative rock,\u201d or even \u201cemo\u201d for covering emotional topics, could probably be credited with helping to bring issues like depression and other mental illnesses into the mainstream. Pop-punk singer Gerard Way, former frontman for the band My Chemical Romance who later went solo, has made a career of singing about depression and addiction. Through several songs on MCR\u2019s \u201cThe Black Parade\u201d album, Way articulated his experiences with being \u201csuper depressed.\u201d Another so-called emo musician who has tackled the topics of depression, anxiety and bipolar disorder is Pete Wentz, the songwriter and bass player for Fall Out Boy. Wentz suffers from bipolar disorder, and wrote the song \u201c7 Minutes in Heaven (Ativan Halen)\u201d about his related depression and attempted suicide. \u201cThere should be no shame in talking about the topic,\u201d Wentz has said. Even when the song is about someone else, it can help convey the challenges a person who has depression must grapple with. "Adam's Song," sung by lead singer Mark Hoppus of the alt-rock band Blink-182 is said to be about their friend Adam, who suffered from depression and committed suicide a few years back. Australian alt-pop singer Sia, who typically appears onstage with her face hidden behind elaborate wigs, masks or face paint, has revealed that she suffers from bipolar II disorder that she believes was brought on by smoking too much marijuana when she was young, before her brain was \u201cfully formed.\u201d She also has been forthcoming about her depression and addiction, as well as mental illness in her family. Rising through the ranks of the emo\/indie-rock genre is solo musician Mitski, who often performs songs that touch on her battles with depression and anxiety. Songs like \u201cClass of 2013\u201d and \u201cLast Words of a Shooting Star\u201d convey the angst of growing up, leaving home and falling into deep depression. Regardless of the genre, these singers, songwriters and musicians have raised awareness of the very real pain that people with depression and bipolar disorder suffer with. They have helped improve our understanding of mental illness, removing some of the stigma around it. Their songs speak of darkness, but also of hope, and that may be the appeal for the legions of fans who follow them. The popularity of many depressive or bipolar celebrities and their music may be due, in part, to a shared experience between artist and audience.