Starstruck (Heartstrings #1)

After a tragic car accident leaves Lennon Thorne's world flipped on its axis, she no longer recognizes the life she’s living. She’s staying out too late, waking up in a different bed every day, and worst of all, she can’t write music—the one thing that has always given her reprieve from all of life’s chaos.
Until she ends up in the bed of Baxter James, the world’s most famous, and notorious, rockstar. He’s seven years older, signed to the record label she works at, and the last person she should get involved with. But the tension between them is palpable, and though they know they should stay away from each other, they can’t deny the pull they feel toward one another.
As long as it’s only for one night.
At least, it should’ve been just one night. But when the headliner for the benefit concert that Lennon is planning cancels, she has no choice but to turn to the one man she swore she would stay away from—the one man who doesn't want to stay away from her.
Except he has a secret. And if anyone finds out, he could lose everything.
Including her.

Starstruck is the first book in the Heartstrings Duet by Alexandra Lee. Though this book is labelled as a duet, it can be read as a standalone and does have a happily-ever-after.