Copycat Starbucks Raspberry Swirl Pound Cake

"Tangy, dense lemon pound cake swirled with raspberries and topped with a sweet lemon icing. This super moist, super dense lemon pound cake is swirled with raspberries and topped off with a sweet lemon icing. This copycat Starbucks pound cake recipe is so good, you may never head to Starbucks again! So start baking up this delicious copycat dessert, but remember to make enough for everyone. They'll all be coming back for seconds - maybe thirds!"