He is the second member of the popular band to enlist in the army, posting a goodbye message online.
The Oscar winner was admitted to hospital a week ago following a "medical complication".
A leaked US government document alleged that Hikvision was likely enabling Chinese espionage.
The Apple CEO greeted customers who visited the store and posed for selfies with some of them.
A huge set has been built for Wizard of Oz film spin-off Wicked, which stars Ariana Grande.
The former star of The OC will appear in the relaunched Australian soap later this year.
WhatsApp and messaging apps unite to urge the UK government to rethink the Online Safety Bill.
LinkedIn's reputation for being dry and corporate is changing but not all users like the more personal tone.
Union group claims using artificial intelligence to hire and fire staff could lead to greater discrimination.
Ukraine's Kalush Orchestra, the UK's Sam Ryder and Liverpool's own Sonia will perform, the BBC says.