In Instagram post, pop star assures fans she will be back 'soon', postpones North American tour dates

Pop star was forced to delay start of upcoming world tour after suffering 'serious bacterial infection'

64-year-old was set to launch series of North American and European performances with show in Vancouver on July 15

Singer, who also uses the unofficial name 'Esther,' won't perform but will reportedly visit the graves of rabbis affiliated with the mystical Kabbalah movement

Music executive co-founded Sire Records, inked deals with The Ramones, Talking Heads and The Pretenders, said he felt pressured to stay in closet due to Judaism

Singer has largely escaped criticism for sharing speech from Nation of Islam leader, who has long history of anti-Semitism

Pop icon in online post criticizes president for his handling of coronavirus pandemic, anti-racism protests after Oklahoma campaign event

Singer says she tested positive for antibodies, fell sick in February

Sylvan Adams vows to bring an Israeli to the Tour de France, admits Madonna delivered a 'bad performance' in Tel Aviv and recalls being 'very frustrated' with Israeli red tape

Provocative group Hatari had brandished scarves with Palestinian flags even though singing contest bars political gestures