Taylor Swift has been enjoying a secret romance with British star Joe Alwyn.

And Lovato just marked four years of sobriety after a hard-fought battle with mental illness and addiction.

En 2008, elle signe avec le label Hollywood Records avec lequel elle sort cinq albums : son premier album, Don't Forget, sorti en 2008, atteint la deuxième place du Billboard 200, son deuxième album, Here We Go Again, sorti en 2009, se classe numéro un.

Sa carrière prend un tournant avec son troisième album, Unbroken, sorti en 2011, qui arrive à la quatrième place du Billboard 200 et dont sont extraits les singles Skyscraper et Give Your Heart A Break qui ont connu un grand succès critique et commercial.

Though it's only a little after 9 a.m., Demi Lovato and Nick Jonas are already bickering. You're ­welcome, honey." She rests a patronizing hand on his shoulder. "You threw me under the bus."Jonas and Lovato, both 23, were Disney Channel charges who started working before they were tweens and have been singing and acting ever since.

They're seated on the terrace at the ritzy Wynn ­brunchery Tableau on a hot Las Vegas summer ­morning, and Lovato has asked Jonas to tack fries onto his meal so she can "have one and not feel bad about myself." When the server arrives, Jonas requests an off-menu egg white omelet -- then casually adds, "You know what? Each has been, in his and her own way, through the ringer.