Idris Elba Welcomes First Son

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Idris Elba, 41, is a brand-new father to a baby boy!

The Mandela: Long Walk to Freedom actor took to Twitter on April 18, 2014, to announce the birth of his son with girlfriend Naiyana Garth.

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"My son Winston Elba was born yesterday .. .Truly amazing :-)," he wrote.

Related: 5 Things You Don't Know About Idris Elba

This is Elba's second child. The actor also has a daughter, Isan, 11, with his ex-wife Dormowa Sherman.