BBC

TikTok is thought to have about half a billion active users worldwide, with a large percentage in their teens or early 20s.

The short-form video app has become a fertile birthing ground for memes, many of them music-related.

One example involved users and their pets switching into cowboy and cowgirl clothing at a certain point in rapper Lil Nas X’s song Old Town Road – something that is credited with it becoming a huge hit.

But some politicians are worried the app’s Chinese owner, Bytedance, poses a risk to national security.

Regulators have also raised their own safety concerns.

So is the app safe or is the fervour about TikTok a tempest in a teapot?

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