The singer and her ex-husband have failed to reach an agreement over custody of their son Rocco
Singer angered local officials by wearing the national flag during her performance
The 'Rebel Heart' star has taken to Instagram to share the heartfelt post
The incident took place at a gig in Taipei, Taiwan
Singer last played 'Bedtime Stories' cut in 1995
The incident took place at the pop singer's show in Nashville last night
Singer denies speculation surrounding recent concert in Louisville, Kentucky
Madonna performed the cover in Houston on Tuesday night
The US pop star has been posting festive social media messages
Singer blames organisers at SSE Hydro as technical problems hit her 'Rebel Heart' tour again