diff --git a/v4/events.go b/v4/events.go
index 4d4ed33..00f0cbb 100644
--- a/v4/events.go
+++ b/v4/events.go
@@ -32,6 +32,8 @@ const (
 	EventTypeServiceTerminate
 	EventTypeBackoff
 	EventTypeResume
+	EventTypeServiceStart
+	EventTypeServiceStop
 )
 
 type EventStopTimeout struct {
@@ -184,3 +186,47 @@ func (e EventResume) Map() map[string]interface{} {
 		"supervisor_name": e.SupervisorName,
 	}
 }
+
+type EventServiceStart struct {
+	Supervisor     *Supervisor `json:"-"`
+	SupervisorName string      `json:"supervisor_name"`
+	Service        Service     `json:"-"`
+	ServiceName    string      `json:"service_name"`
+}
+
+func (e EventServiceStart) Type() EventType {
+	return EventTypeServiceStart
+}
+
+func (e EventServiceStart) String() string {
+	return fmt.Sprintf("%s: Service %s started.", e.Supervisor, e.Service)
+}
+
+func (e EventServiceStart) Map() map[string]interface{} {
+	return map[string]interface{}{
+		"supervisor_name": e.SupervisorName,
+		"service_name":    e.ServiceName,
+	}
+}
+
+type EventServiceStop struct {
+	Supervisor     *Supervisor `json:"-"`
+	SupervisorName string      `json:"supervisor_name"`
+	Service        Service     `json:"-"`
+	ServiceName    string      `json:"service_name"`
+}
+
+func (e EventServiceStop) Type() EventType {
+	return EventTypeServiceStop
+}
+
+func (e EventServiceStop) String() string {
+	return fmt.Sprintf("%s: Service %s stopped.", e.Supervisor, e.Service)
+}
+
+func (e EventServiceStop) Map() map[string]interface{} {
+	return map[string]interface{}{
+		"supervisor_name": e.SupervisorName,
+		"service_name":    e.ServiceName,
+	}
+}
diff --git a/v4/supervisor.go b/v4/supervisor.go
index 585bf16..6b1d256 100644
--- a/v4/supervisor.go
+++ b/v4/supervisor.go
@@ -345,7 +345,7 @@ func (s *Supervisor) Serve(ctx context.Context) error {
 	for _, id := range s.restartQueue {
 		namedService, present := s.services[id]
 		if present {
-			s.runService(ctx, namedService.Service, id)
+			s.runService(ctx, namedService, id)
 		}
 	}
 	s.restartQueue = make([]serviceID, 0, 1)
@@ -387,8 +387,9 @@ func (s *Supervisor) Serve(ctx context.Context) error {
 				id := s.serviceCounter
 				s.serviceCounter++
 
-				s.services[id] = serviceWithName{msg.service, msg.name}
-				s.runService(ctx, msg.service, id)
+				namedService := serviceWithName{msg.service, msg.name}
+				s.services[id] = namedService
+				s.runService(ctx, namedService, id)
 
 				msg.response <- id
 			case removeService:
@@ -424,7 +425,7 @@ func (s *Supervisor) Serve(ctx context.Context) error {
 			for _, id := range s.restartQueue {
 				namedService, present := s.services[id]
 				if present {
-					s.runService(ctx, namedService.Service, id)
+					s.runService(ctx, namedService, id)
 				}
 			}
 			s.restartQueue = make([]serviceID, 0, 1)
@@ -499,7 +500,7 @@ func (s *Supervisor) handleFailedService(ctx context.Context, id serviceID, err
 		curState := s.state
 		s.m.Unlock()
 		if curState == normal {
-			s.runService(ctx, failedService.Service, id)
+			s.runService(ctx, failedService, id)
 		} else {
 			s.restartQueue = append(s.restartQueue, id)
 		}
@@ -533,7 +534,7 @@ func (s *Supervisor) handleFailedService(ctx context.Context, id serviceID, err
 	}
 }
 
-func (s *Supervisor) runService(ctx context.Context, service Service, id serviceID) {
+func (s *Supervisor) runService(ctx context.Context, namedService serviceWithName, id serviceID) {
 	childCtx, cancel := context.WithCancel(ctx)
 	done := make(chan struct{})
 	blockingCancellation := func() {
@@ -562,13 +563,15 @@ func (s *Supervisor) runService(ctx context.Context, service Service, id service
 			r := recover()
 			if r == nil {
 				s.serviceEnded(id, err)
+				s.spec.EventHook(EventServiceStop{s, s.Name, namedService.Service, namedService.name})
 			} else {
 				panic(r)
 			}
 		}()
 
-		err = service.Serve(childCtx)
+		err = namedService.Service.Serve(childCtx)
 	}()
+	s.spec.EventHook(EventServiceStart{s, s.Name, namedService.Service, namedService.name})
 }
 
 func (s *Supervisor) removeService(id serviceID, notificationChan chan struct{}) {