This content is copyright of CelebMix.com. Irish singer-songwriter Allie Sherlock is truly coming into her own. The 20-year-old artist first rose to fame when she was just 12, when a performance of her busking Ed Sheeran's 'Supermarket Flowers' on Grafton Street, Dublin went viral. This lead to an appearance on The Ellen Show, and since then, the singer-songwriter has continued to grow from strength to strength.